72 results on '"Maoxin Wu"'
Search Results
2. Keratin 17 Is a Novel Cytologic Biomarker for Urothelial Carcinoma Diagnosis
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Kenneth R. Shroyer, Ina Chan, Nam Woo Kim, Sruthi Babu, Maoxin Wu, and Luisa F. Escobar-Hoyos
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0301 basic medicine ,Adult ,Male ,medicine.medical_specialty ,Cytodiagnosis ,Urine ,Gastroenterology ,Keratin 17 ,Sensitivity and Specificity ,03 medical and health sciences ,0302 clinical medicine ,Internal medicine ,Cytology ,Biopsy ,Biomarkers, Tumor ,Medicine ,Humans ,Urine cytology ,Aged ,Carcinoma, Transitional Cell ,Keratin-17 ,medicine.diagnostic_test ,business.industry ,Area under the curve ,General Medicine ,Original Articles ,Middle Aged ,030104 developmental biology ,Urinary Bladder Neoplasms ,030220 oncology & carcinogenesis ,Cohort ,Biomarker (medicine) ,Female ,business - Abstract
Objectives The microscopic features of urine cytology specimens are subjective and may not reliably distinguish between benign urothelial cells and low-grade urothelial carcinoma (UC). Prior studies demonstrated that keratin 17 (K17) detection in biopsies is highly sensitive for UC. The current study aimed to define K17 diagnostic test performance for initial screening and detect recurrent UC in urine specimens. Methods K17 was detected by immunocytochemistry (ICC) in consecutively collected urine specimens (2018-2019). A qualitative score for the K17 test was determined in 81 samples (discovery cohort) and validated in 98 samples (validation cohort). K17 sensitivity and specificity were analyzed in both cohorts across all grades of UC. Results Based on the discovery cohort, the presence of 5 or more K17 immunoreactive urothelial cells (area under the curve = 0.90; P < .001) was the optimal threshold to define a K17-positive test. The sensitivity of the K17 ICC test for biopsy-confirmed UC was 35 of 36 (97%) and 18 of 21 (86%) in the discovery and validation cohorts, respectively. K17 was positive in 16 of 19 (84%) specimens with biopsy-confirmed low-grade UC and in 34 of 34 (100%) of specimens with high-grade UC. Conclusions K17 ICC is a highly sensitive diagnostic test for initial screening and detection of recurrence across all grades of UC.
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- 2021
3. Agreement on endoscopic ultrasonography-guided tissue specimens: Comparing a 20-G fine-needle biopsy to a 25-G fine-needle aspiration needle among academic and non-academic pathologists
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Priscilla A. Riet, Djuna L. Cahen, Katharina Biermann, Bettina Hansen, Alberto Larghi, Guido Rindi, Giovanni Fellegara, Paolo Arcidiacono, Claudio Doglioni, Nicola Liberta Decarli, Julio Iglesias‐Garcia, Ihab Abdulkader, Hector Lazare Iglesias, Masayuki Kitano, Takaaki Chikugo, Satoru Yasukawa, Hans Valk, Nam Quoc Nguyen, Andrew Ruszkiewicz, Marc Giovannini, Flora Poizat, Schalk Merwe, Tania Roskams, Erwin Santo, Silvia Marmor, Kenneth Chang, Fritz Lin, James Farrell, Marie Robert, Juan Carlos Bucobo, Alan Heimann, Francisco Baldaque‐Silva, Carlos Fernández Moro, Marco J. Bruno, Fabia Attili, Harry Aslanian, Adebowale Adeniran, John G. Lee, Mariachiara Petrone, Erwan Bories, Erez Scapa, Jonathan M. Buscaglia, Maoxin Wu, van Riet, Pa, Cahen, Dl, Biermann, K, Hansen, B, Larghi, A, Rindi, G, Fellegara, G, Arcidiacono, P. G., Doglioni, C, Liberta Decarli, N, Iglesias-Garcia, J, Abdulkader, I, Lazare Iglesias, H, Kitano, M, Chikugo, T, Yasukawa, S, van der Valk, H, Nguyen, Nq, Ruszkiewicz, A, Giovannini, M, Poizat, F, van der Merwe, S, Roskams, T, Santo, E, Marmor, S, Chang, K, Lin, F, Farrell, J, Robert, M, Bucobo, Jc, Heimann, A, Baldaque-Silva, F, Fernández Moro, C, Bruno, Mj., Gastroenterology & Hepatology, Urology, and Surgery
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medicine.medical_specialty ,MULTICENTER ,Endoscopic ultrasonography ,Endosonography ,Fine needle biopsy ,law.invention ,03 medical and health sciences ,0302 clinical medicine ,GASTROENTEROLOGY EUROPEAN-SOCIETY ,Randomized controlled trial ,PRECISION MEDICINE ,law ,Biopsy ,medicine ,Humans ,DIAGNOSTIC-ACCURACY ,Radiology, Nuclear Medicine and imaging ,Endoscopic Ultrasound-Guided Fine Needle Aspiration ,Pancreas ,ULTRASOUND ,METAANALYSIS ,Science & Technology ,LESIONS ,Gastroenterology & Hepatology ,medicine.diagnostic_test ,business.industry ,Gastroenterology ,Liver, Biliary tract and Pancreas ,Reproducibility of Results ,CORE BIOPSY ,Pancreatic Neoplasms ,Pathologists ,Sample quality ,Fine-needle aspiration ,ROC Curve ,FNA ,030220 oncology & carcinogenesis ,FNB ,22-GAUGE ASPIRATION ,Original Article ,Surgery ,030211 gastroenterology & hepatology ,pathology ,Clinical Competence ,Radiology ,interobserver agreement ,ORIGINAL ARTICLES ,business ,Life Sciences & Biomedicine - Abstract
BACKGROUND AND AIM: A recently carried out randomized controlled trial showed the benefit of a novel 20-G fine-needle biopsy (FNB) over a 25-G fine-needle aspiration (FNA) needle. The current study evaluated the reproducibility of these findings among expert academic and non-academic pathologists. METHODS: This study was a side-study of the ASPRO (ASpiration versus PROcore) study. Five centers retrieved 74 (59%) consecutive FNB and 51 (41%) FNA samples from the ASPRO study according to randomization; 64 (51%) pancreatic and 61 (49%) lymph node specimens. Samples were re-reviewed by five expert academic and five non-academic pathologists and rated in terms of sample quality and diagnosis. Ratings were compared between needles, expert academic and non-academic pathologists, target lesions, and cytology versus histological specimens. RESULTS: Besides a higher diagnostic accuracy, FNB also provided for a better agreement on diagnosing malignancy (ĸ = 0.59 vs ĸ = 0.76, P
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- 2019
4. Keratin 17 testing in pancreatic cancer needle aspiration biopsies predicts survival
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Lucia Roa-Peña, Ali Akalin, Maoxin Wu, Sruthi Babu, Cindy V. Leiton, Jonathan M. Buscaglia, Sofia Taboada, Kenneth R. Shroyer, and Luisa F. Escobar-Hoyos
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Oncology ,Cancer Research ,medicine.medical_specialty ,Pancreatic ductal adenocarcinoma ,030209 endocrinology & metabolism ,Keratin 17 ,Article ,03 medical and health sciences ,0302 clinical medicine ,Pancreatic cancer ,Internal medicine ,Cox proportional hazards regression ,medicine ,Biomarkers, Tumor ,Humans ,Prognostic biomarker ,Keratin-17 ,business.industry ,Biopsy, Needle ,medicine.disease ,Prognosis ,Staining ,Pancreatic Neoplasms ,030220 oncology & carcinogenesis ,Cohort ,Immunohistochemistry ,business ,Carcinoma, Pancreatic Ductal - Abstract
Background Although pancreatic ductal adenocarcinoma (PDAC) has one of the lowest 5-year survival rates of all cancers, differences in survival exist between patients with clinically identical characteristics. The authors previously demonstrated that keratin 17 (K17) expression in PDAC, measured by RNA sequencing or immunohistochemistry (IHC), is an independent negative prognostic biomarker. Only 20% of cases are candidates for surgical resection, but most patients are diagnosed by needle aspiration biopsy (NAB). The aims of this study were to determine whether there was a correlation in K17 scores detected in matched NABs and surgical resection tissue sections and whether K17 IHC in NAB cell block specimens could be used as a negative prognostic biomarker in PDAC. Methods K17 IHC was performed for a cohort of 70 patients who had matched NAB cell block and surgical resection samples to analyze the correlation of K17 expression levels. K17 IHC was also performed in cell blocks from discovery and validation cohorts. Kaplan-Meier and Cox proportional hazards regression models were analyzed to determine survival differences in cases with different levels of K17 IHC expression. Results K17 IHC expression correlated in matched NABs and resection tissues. NAB samples were classified as high for K17 when ≥80% of tumor cells showed strong (2+) staining. High-K17 cases, including stage-matched cases, had shorter survival. Conclusions K17 has been identified as a robust and independent prognostic biomarker that stratifies clinical outcomes for cases that are diagnosed by NAB. Testing for K17 also has the potential to inform clinical decisions for optimization of chemotherapeutic interventions.
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- 2021
5. Successful creation of pancreatic cancer organoids by means of EUS-guided fine-needle biopsy sampling for personalized cancer treatment
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Demetrios Tzimas, Laura A. Martello, Ellen Li, Suman Grewel, Jonathan Somma, Maoxin Wu, Aaron R. Sasson, Shivakumar Vignesh, Joseph F. LaComb, Maria Munoz-Sagastibelza, Jonathan M. Buscaglia, Juan Carlos Bucobo, Hervé Tiriac, Satish Nagula, Leahana Rowehl, Joseph Kim, and David A. Tuveson
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Male ,Oncology ,Endoscopic ultrasound ,medicine.medical_specialty ,Article ,Tissue Culture Techniques ,03 medical and health sciences ,0302 clinical medicine ,Pancreatic cancer ,Internal medicine ,Biopsy ,Tumor Cells, Cultured ,medicine ,Pancreatic mass ,Carcinoma ,Organoid ,Humans ,Radiology, Nuclear Medicine and imaging ,Sampling (medicine) ,Precision Medicine ,Endoscopic Ultrasound-Guided Fine Needle Aspiration ,Aged ,Aged, 80 and over ,medicine.diagnostic_test ,business.industry ,Gastroenterology ,Middle Aged ,medicine.disease ,Organoids ,Pancreatic Neoplasms ,Fine-needle aspiration ,030220 oncology & carcinogenesis ,Female ,030211 gastroenterology & hepatology ,Radiology ,business ,Carcinoma, Pancreatic Ductal - Abstract
Background and Aims Pancreatic cancer organoids are tumor models of individualized human pancreatic ductal adenocarcinoma (PDA), created from surgical specimens and used for personalized treatment strategies. Unfortunately, most patients with PDA are not operative candidates. Creation of human PDA organoids at the time of initial tumor diagnosis is therefore critical. Our aim was to assess the feasibility of creating human PDA organoids by EUS fine-needle biopsy (EUS-FNB) sampling in patients with PDA. Methods In this prospective clinical trial in patients referred to evaluate a pancreatic mass, EUS-FNA was performed for initial onsite diagnosis. Two additional needle passes were performed with a 22-gauge FNB needle for organoid creation. Primary outcome was successful isolation of organoids within 2 weeks of EUS-FNB sampling (P0, no passages), confirmed by organoid morphology and positive genotyping. Results Thirty-seven patients with 38 PDA tumors were enrolled. Successful isolation of organoids (P0) was achieved in 33 of 38 tumors (87%). Establishment of PDA organoid lines for ≥5 passages of growth (P5, five passages) was reached in 25 of 38 tumors (66%). In the single patient with successful P5 FNB sampling–derived and P5 surgically derived organoids, there was identical matching of specimens. There were no serious adverse events. Two patients developed bleeding at the EUS-FNB puncture site requiring hemostasis clips. Conclusions Pancreatic cancer organoids can be successfully and rapidly created by means of EUS-FNB sampling using a 22-gauge needle at the time of initial diagnosis. Successful organoid generation is essential for precision medicine in patients with pancreatic cancer in whom most are not surgically resectable. (Clinical trial registration number: NCT03140592.)
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- 2018
6. Primary Colonic Angiosarcoma Seen in a Patient on Calcium Channel Blocker: A Case Report with Summary Analysis of 32 Other Cases from the Literature
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Bian-Tao Mi, Qi Wang, Rong Wei, Maoxin Wu, Hong-Lin Tong, Yong-Lin Zhang, and Ting Zhao
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medicine.medical_specialty ,Computed Tomography Angiography ,medicine.drug_class ,Hemangiosarcoma ,Calcium channel blocker ,Malignancy ,Risk Assessment ,03 medical and health sciences ,0302 clinical medicine ,medicine ,Humans ,Angiosarcoma ,Colectomy ,medicine.diagnostic_test ,business.industry ,Biopsy, Needle ,Angiography ,Articles ,General Medicine ,Middle Aged ,Calcium Channel Blockers ,medicine.disease ,Immunohistochemistry ,Hematochezia ,Treatment Outcome ,Chemotherapy, Adjuvant ,030220 oncology & carcinogenesis ,Colonic Neoplasms ,Hypertension ,Female ,030211 gastroenterology & hepatology ,Histopathology ,Radiology ,Neoplasm Recurrence, Local ,medicine.symptom ,Colorectal Neoplasms ,Gastrointestinal Hemorrhage ,business ,Colorectal Angiosarcoma ,Follow-Up Studies - Abstract
Patient: Female, 54 Final Diagnosis: Primary colonic angiosarcoma Symptoms: Rectal bleeding Medication: Levamlodipine Besylate Clinical Procedure: Hemicolectomy Specialty: Gastroenterology and Hepatology Objective: Rare co-existance of disease or pathology Background: Angiosarcoma is a rare malignant mesenchymal tumor of vascular endothelial cell origin. Its occurrence in the colorectal region is extremely rare. Only 32 cases of primary colorectal angiosarcoma are reported in the current literature. Angiosarcoma in association with calcium channel blocker has been rarely reported. We present such a case of a patient who had been on levamlodipine besylate, a calcium channel blocker, for over 10 years. Case Report: A 53-year-old female with hypertension presented with a fever, a dry cough, and hematochezia. Computed tomography (CT) scan and angiography demonstrated a 6-cm vascular mass in the ileocecal region. The clinical symptoms stopped soon after a right hemicolectomy. The histopathology with immunohistochemical studies confirmed the diagnosis of angiosarcoma. Three months after surgery, the patient had evidence of recurrence of the tumor, however, she no longer presented with a fever or a dry cough. The patient was receiving chemotherapy at the time of the report. Conclusions: Colorectal angiosarcoma is a rare malignancy of endothelial origin with uncertain etiology and often has a poor prognosis. Angiosarcoma seen in a patient taking calcium channel blocker is rare but alarming. CT scan and angiography are helpful tools to raise the suspicion of the diagnosis. A definitive pathological diagnosis relies on histopathology with immunohistochemical stains of endothelial markers. Surgical resection is still the best choice of the different treatment options.
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- 2018
7. ThinPrep Urocyte Filter for Preparation of Urine Cytology Smear Can Reduce Delay in Turnover of The Results and Indirect Cost with Similar Effectiveness in Diagnosing Urothelial Carcinoma
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Jonathan Marose, Kenneth R. Shroyer, Sruthi Babu, Ina Chan, Maoxin Wu, Gary Maini, and Kerri Caracristi
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medicine.medical_specialty ,Indirect costs ,medicine.diagnostic_test ,business.industry ,Filter (video) ,Urology ,Medicine ,business ,Pathology and Forensic Medicine ,Urothelial carcinoma ,Urine cytology - Published
- 2021
8. Strategies for building a successful ultrasound guided FNA practice in department of pathology-Experience at a university hospital
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Maoxin Wu and Kenneth R. Shroyer
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Thyroid nodules ,Pathology ,medicine.medical_specialty ,Histology ,Quality management ,medicine.diagnostic_test ,business.industry ,030209 endocrinology & metabolism ,General Medicine ,Type distribution ,Best interests ,University hospital ,medicine.disease ,Incremental growth ,Ultrasound guided ,Pathology and Forensic Medicine ,03 medical and health sciences ,0302 clinical medicine ,Fine-needle aspiration ,030220 oncology & carcinogenesis ,medicine ,business - Abstract
Introduction Although pathology services focused on fine needle aspiration (FNA) biopsy of superficial palpable masses with on-site cytological evaluation are available in a wide range of clinical and academic settings, the addition of ultrasound (US) guidance into FNA practice by a cytopathologist group can be challenging. An US-FNA service provided by a cytopathologist in the department of Pathology is a relatively new practice in the field of medicine. This report summarizes our experience and strategies in achieving this objective and our successful preliminary results. Materials and Methods The US-FNA service includes (1) an FNA procedure to be performed by a cytopathologist under US guidance; (2) onsite adequacy evaluation and diagnosis to be done by the same cytopathologist; and immediate patient consultation and sample triaging carried out by the same cytopathologist in an FNA suite within the department of Pathology. The FNA suite including a procedure room equipped with a portable US machine, an exam/procedure table, a mobile cabinet with FNA supplies, a counter with sink, and a reception room with waiting area is set-up. Results The establishment of the US-FNA service is successful. There is an incremental growth of the service over the first 8 months. Among the 114 cases performed during the first 8 months, the case type distribution is shown to be 50% thyroid nodules, 33% lymph nodes, 5.5% salivary gland masses, 3.5% breast masses, and 8% soft tissue masses. Conclusions The authors' initial 8 months experience and strategies in setting up a new US-FNA practice in a new institution are discussed to highlight obstacles encountered and approaches that promoted the successful establishment of a new service. A conservative approach, focusing on building partnerships with existing clinical services, can be successfully implemented in most institutions, if appropriate strategies are applied. The main strategy is to ensure that the best interests of patients remain the primary focus and that everything possible is done to improve the quality and effectiveness of patient care by providing the best possible diagnostic US-FNA service, to enable optimal clinical management.
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- 2017
9. SUN-612 Pleural Effusions Revealing Anaplastic Dedifferentiation of Papillary Thyroid Carcinoma
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Carolyn Maxwell, Maoxin Wu, and Qudsia Hussain
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Thyroid ,Thyroid carcinoma ,Pathology ,medicine.medical_specialty ,business.industry ,Endocrinology, Diabetes and Metabolism ,Thyroid Cancer Cases ,medicine ,business - Abstract
Anaplastic dedifferentiation of papillary thyroid carcinoma to lung, pleura and lymph nodes is rare, rapidly progressive and fatal. We report a case of a firefighter who survived the World Trade Center collapse presenting with a large thyroid mass, worsening pleural effusions and pulmonary nodules. A 49-year-old male with history of diabetes and hypertension presented to the Emergency Department with several days of shortness of breath. Vitals were significant for hypoxia, tachypnea and tachycardia. CT Angiography revealed a large (5 x 7 cm) necrotic mass with direct extension to the mediastinum with multiple metastatic lymph nodes in the hila and lungs with bilateral pleural effusions. Dyspnea was relieved in the Emergency Department with placement of a pigtail catheter and pleural fluid was sent for cytology. Further history from family revealed the patient had worked as a firefighter at the World Trade Center for four months. After September 11th, he followed in the WTC survivor clinic in Manhattan with chest x-rays twice a year, the last of which had no abnormalities. Family also reported months of worsening dyspnea with a “high-pitched voice”, weakness and a 20-pound weight loss. Social history was significant for active tobacco use of a pack-per-day for ten years. In the Emergency Department, the patient was placed on supplemental oxygen and otolaryngology performed nasopharyngolaryngoscopy that showed right vocal cord immobility and mild tracheal compression. High-dose dexamethasone taper was initiated. In the hospital, the patient’s respiratory status worsened and he became increasingly septic. Antibiotics were begun for presumed pneumonia. Due to worsening hypercapnea and tracheal compression, the decision was made with family to intubate and vasopressors were begun for hypotension. Interventional radiology performed a biopsy of the thyroid mass revealing papillary carcinoma, but lung nodule biopsy was unrevealing. Subsequent pleural fluid analysis showed poorly differentiated malignant cells with a high degree of nuclear pleomorphism and bizarre shapes suggestive of anaplastic features. Immunohistochemistry was positive for Paired Box Gene 8 (PAX8) and Cytokeratin 7 (CK7). As PAX8 is specific for thyroid cancer, the pleural effusions were thought to be metastatic adenocarcinoma from anaplastic dedifferentiation of papillary thyroid cancer. Given clinical status, the patient was not a candidate for chemotherapy. A goals-of-care decision was made to focus on comfort and the patient passed comfortably with family at bedside. Anaplastic thyroid tumors account for less than two-percent of all thyroid cancers. However, they are rapidly progressive and fatal with tumor burden often doubling in under a week’s time. Identifying these tumors earlier remains a goal in reducing the rate of anaplastic tumors in patients with carcinogenic exposure, such as our patient.
- Published
- 2019
10. Temporal mandibular joint chondrocalcinosis (tophaceous pseudogout) diagnosed by ultrasound‐guided fine‐needle aspiration
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Alan Heimann, Jun Fan, and Maoxin Wu
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Image-Guided Biopsy ,musculoskeletal diseases ,medicine.medical_specialty ,Histology ,Biopsy, Fine-Needle ,Chondrocalcinosis ,030209 endocrinology & metabolism ,Pathology and Forensic Medicine ,03 medical and health sciences ,0302 clinical medicine ,stomatognathic system ,medicine ,Humans ,Elderly patient ,Ultrasonography ,Aged, 80 and over ,Temporomandibular Joint ,medicine.diagnostic_test ,business.industry ,General Medicine ,medicine.disease ,Calcium pyrophosphate dihydrate ,Ultrasound guided ,Temporomandibular joint ,Cellular material ,stomatognathic diseases ,Fine-needle aspiration ,medicine.anatomical_structure ,030220 oncology & carcinogenesis ,Female ,Radiology ,Pseudogout ,business - Abstract
Tophaceous pseudogout is a calcium pyrophosphate dihydrate crystal (CPPD) deposition disease that frequently affects elderly patient in the temporomandibular joint (TMJ). A diagnosis of CPPD deposition disease in the TMJ is challenging due to its mimicking of other benign and malignant entities. Surgical exploration followed by histologic examination is by far the most frequently used diagnostic modality. We present a case of an 87-year-old female who presented with a right TMJ mass. A final diagnosis of tophaceous pseudogout was made on cellular material obtained by ultrasound-guided fine-needle aspiration (US-guided FNA). Based on our case and current available literature, ultrasound-guided FNA is a reliable tool for diagnosing tophaceous pseudogout of the TMJ.
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- 2019
11. A multicenter randomized trial comparing a 25-gauge EUS fine-needle aspiration device with a 20-gauge EUS fine-needle biopsy device
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Erwan Bories, Andrew Ruszkiewicz, Erez Scapa, Masayuki Kitano, Flora Poizat, Carlos Fernández Moro, Erwin Santo, Takaaki Chikugo, Guido Rindi, Jonathan M. Buscaglia, M C Petrone, Djuna L. Cahen, Marco J. Bruno, Fabia Attili, Harry R. Aslanian, Adebowale J. Adeniran, Priscilla A. van Riet, Maoxin Wu, Francisco Baldaque-Silva, Silvia Marmor, Julio Iglesias-Garcia, Claudio Doglioni, Nam Q. Nguyen, Paolo Giorgio Arcidiacono, Schalk Van der Merwe, Nicole S. Erler, Marie E. Robert, Ihab Abdulkader, Tania Roskams, Juan Carlos Bucobo, Alan Heimann, Katharina Biermann, Marc Giovannini, John G. Lee, Fritz Lin, Alberto Larghi, Jan-Werner Poley, Kenneth J. Chang, James J. Farrell, van Riet, Pa, Larghi, A, Attili, F, Rindi, G, Nguyen, Nq, Ruszkiewicz, A, Kitano, M, Chikugo, T, Aslanian, H, Farrell, J, Robert, M, Adeniran, A, Van Der Merwe, S, Roskams, T, Chang, K, Lin, F, Lee, Jg, Arcidiacono, P. G., Petrone, M, Doglioni, C, Iglesias-Garcia, J, Abdulkader, I, Giovannini, M, Bories, E, Poizat, F, Santo, E, Scapa, E, Marmor, S, Bucobo, Jc, Buscaglia, Jm, Heimann, A, Wu, M, Baldaque-Silva, F, Moro, Cf, Erler, N, Biermann, K, Poley, Jw, Cahen, Dl, Bruno, Mj., Gastroenterology & Hepatology, Epidemiology, and Pathology
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Image-Guided Biopsy ,Male ,medicine.medical_specialty ,Lymphoma ,Gastrointestinal Stromal Tumors ,Lymphadenopathy ,Adenocarcinoma ,Malignancy ,Sensitivity and Specificity ,Endosonography ,Fine needle biopsy ,law.invention ,03 medical and health sciences ,0302 clinical medicine ,Randomized controlled trial ,law ,Pancreatitis, Chronic ,Intestinal Neoplasms ,Biopsy ,Odds Ratio ,Clinical endpoint ,medicine ,Carcinoma ,Humans ,Radiology, Nuclear Medicine and imaging ,Endoscopic Ultrasound-Guided Fine Needle Aspiration ,Aged ,medicine.diagnostic_test ,business.industry ,Gastroenterology ,Middle Aged ,medicine.disease ,Pancreatic Neoplasms ,Clinical trial ,Neuroendocrine Tumors ,Fine-needle aspiration ,Needles ,Lymphatic Metastasis ,030220 oncology & carcinogenesis ,Multivariate Analysis ,Carcinoma, Squamous Cell ,Female ,030211 gastroenterology & hepatology ,Biopsy, Large-Core Needle ,Radiology ,business - Abstract
Several studies have compared EUS-guided FNA with fine-needle biopsy (FNB), but none have proven superiority. We performed a multicenter randomized controlled trial to compare the performance of a commonly used 25-gauge FNA needle with a newly designed 20-gauge FNB needle.Consecutive patients with a solid lesion were randomized in this international multicenter study between a 25-gauge FNA (EchoTip Ultra) or a 20-gauge FNB needle (ProCore). The primary endpoint was diagnostic accuracy for malignancy and the Bethesda classification (non-diagnostic, benign, atypical, malignant). Technical success, safety, and sample quality were also assessed. Multivariable and supplementary analyses were performed to adjust for confounders.A total of 608 patients were allocated to FNA (n = 306) or FNB (n = 302); 312 pancreatic lesions (51%), 147 lymph nodes (24%), and 149 other lesions (25%). Technical success rate was 100% for the 25-gauge FNA and 99% for the 20-gauge FNB needle (P = .043), with no differences in adverse events. The 20-gauge FNB needle outperformed 25-gauge FNA in terms of histologic yield (77% vs 44%, P .001), accuracy for malignancy (87% vs 78%, P = .002) and Bethesda classification (82% vs 72%, P = .002). This was robust when corrected for indication, lesion size, number of passes, and presence of an on-site pathologist (odds ratio, 3.53; 95% confidence interval, 1.55-8.56; P = .004), and did not differ among centers (P = .836).The 20-gauge FNB needle outperformed the 25-gauge FNA needle in terms of histologic yield and diagnostic accuracy. This benefit was irrespective of the indication and was consistent among participating centers, supporting the general applicability of our findings. (Clinical trial registration number: NCT02167074.).
- Published
- 2019
12. Risk of Delayed Human Papillomavirus Vaccination in Inner-City Adolescent Women
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Ken Peake, Maoxin Wu, Nicolas F. Schlecht, Anne Nucci-Sack, Arnold H. Szporn, Angela Diaz, Viswanathan Shankar, Robert D. Burk, and Howard D. Strickler
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medicine.medical_specialty ,Longitudinal study ,Adolescent ,Urban Population ,Anal Canal ,Cervix Uteri ,Polymerase Chain Reaction ,Medication Adherence ,Young Adult ,Major Articles and Brief Reports ,03 medical and health sciences ,Adolescent medicine ,0302 clinical medicine ,030225 pediatrics ,Humans ,Immunology and Allergy ,Medicine ,Longitudinal Studies ,Papillomavirus Vaccines ,030212 general & internal medicine ,Child ,Papillomaviridae ,Immunization Schedule ,business.industry ,Obstetrics ,Incidence (epidemiology) ,Papillomavirus Infections ,Vaccination ,Hazard ratio ,virus diseases ,Anal Infection ,United States ,Confidence interval ,Regimen ,Infectious Diseases ,DNA, Viral ,Immunology ,Female ,business - Abstract
Background. Uptake of human papillomavirus (HPV) vaccine in the United States is slow, and the effectiveness of the vaccine has not been assessed in high-risk adolescent populations. Methods. We conducted a longitudinal study of 1139 sexually active, inner-city adolescent women receiving the 3-dose quadrivalent (4vHPV) vaccine. Cervical and anal specimens collected semiannually were tested using an L1-specific polymerase chain reaction assay. Postvaccination incidence of 4vHPV vaccine and nonvaccine HPV types, and risk of cervical cytological abnormalities, were assessed in relation to time to completion of all 3 vaccine doses. Results. Compared to vaccine naive women at enrollment, vaccinated women had significantly lower incidence rate ratios of cervical infection with HPV6/11/16/18 (0.2; 95% confidence interval [CI], .1–.4) and the related types HPV31 and HPV45 (0.4 [95% CI, .2–1.0] and 0.3 [95% CI, .1–.6], respectively), as well as significantly lower incidence rate ratios of anal infection with HPV6/11/16/18 (0.4; 95% CI, .2–.7). Notably, we observed higher risks of cervical HPV6/11/16/18 infection (hazards ratio [HR], 2.9; 95% CI, 1.0–8.0) and associated cytological abnormalities (HR, 4.5; 95% CI, .7–26.0) among women immunized at ≥15 years of age who took ≥12 months (vs
- Published
- 2016
13. Ultrasound guided FNA of thyroid performed by cytopathologists enhances Bethesda diagnostic value
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Marita Teng, David Y. Zhang, Zesong Zhang, Eric M. Genden, Fadi Salem, David Burstein, Maoxin Wu, Brett A. Miles, YoonSun Choi, Quisheng Si, and Arnold H. Szporn
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Gynecology ,medicine.medical_specialty ,Histology ,Suspicious for Malignancy ,medicine.diagnostic_test ,business.industry ,Thyroid ,Bethesda system ,030209 endocrinology & metabolism ,General Medicine ,Malignancy ,medicine.disease ,Bethesda system for reporting thyroid cytopathology ,Pathology and Forensic Medicine ,Surgical pathology ,03 medical and health sciences ,0302 clinical medicine ,Fine-needle aspiration ,medicine.anatomical_structure ,030220 oncology & carcinogenesis ,Biopsy ,medicine ,Nuclear medicine ,business - Abstract
Background Ultrasound (US) guided fine needle aspiration (FNA) biopsy of thyroid are examined and reported by cytopathologists based usually on The Bethesda System for Reporting Thyroid Cytopathology (BTC) regardless of the procedure's performers. This study is designed to determine whether there is any performer-dependent difference. Methods Six hundred and fifty-one thyroid US-FNAs in correlation with surgical follow-up (SFU) were studied. The statistical analysis was performed using the surgical pathology diagnosis as the gold standard. Results Among the 283 cases performed by cytopathologists, there were 8 (2.8%) nondiagnostic (BTC I), 197 (69.6%) benign (BTC II), 31 (11%) atypical (BTC III), 14 (5%) suspicious for follicular neoplasm (BTC IV), 12 (4.2%) suspicious for malignancy (BTC V), and 21 (7.4%) positive for malignancy (BTC VI), and there were 55 (19.4%) cases with SFU. The 368 cases performed by others showed 76 (21%) BTC I, 238 (65%) BTC II, 26 (7%) BTC III, 10 (3%) BTC IV, 9 (2.5%) BTC V 5, and 9 (2.5%) BTC VI, and there were 26 (7%) cases with SFU. The cytopathologist group achieved better sensitivity (91.3 vs.78%); slightly better specificity (83.3 vs. 82%); better positive predictive value (87.5 vs. 70%); similar negative predictive value (88.2 vs. 88%); and better overall accuracy (87.8 vs. 81%) compared with the non-cytopathologist group. Overall the difference for all statistical values is significant different (P = 0.041). Conclusion US-FNA performed by cytopathologists showed a lower unsatisfactory rate and significantly better overall statistical values. Cytopathologists may play an important role in thyroid patient care. Diagn. Cytopathol. 2016;44:787–791. © 2016 Wiley Periodicals, Inc.
- Published
- 2016
14. Application of American College of Radiology Thyroid Imaging Report and Data System (ACR TI-RADS) and its Correlation with The Bethesda System for Reporting Thyroid Cytology (TBSRTC) - An Interventional Cytopathologist's Experience
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Maoxin Wu
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medicine.medical_specialty ,medicine.anatomical_structure ,medicine.diagnostic_test ,Imaging report ,business.industry ,Cytology ,Bethesda system ,Thyroid ,medicine ,Radiology ,business ,Pathology and Forensic Medicine - Published
- 2019
15. Suboptimal Interobserver Agreement Among Cytopathologists in Assessment of Pancreatic Lesions: A Call for Action
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Maoxin Wu
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Observer Variation ,medicine.medical_specialty ,Hepatology ,business.industry ,Gastroenterology ,MEDLINE ,Endosonography ,03 medical and health sciences ,0302 clinical medicine ,medicine.anatomical_structure ,Action (philosophy) ,030220 oncology & carcinogenesis ,Neoplasms ,Medicine ,Humans ,030211 gastroenterology & hepatology ,Radiology ,Observer variation ,business ,Pancreas - Published
- 2017
16. Collision tumor of primary merkel cell carcinoma and chronic lymphocytic leukemia/small lymphocytic lymphoma, diagnosed on ultrasound-guided fine-needle aspiration biopsy: A unique case report and review of literature
- Author
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Zhong Hua Li, Maoxin Wu, and Jing-Jing Yang
- Subjects
Pathology ,medicine.medical_specialty ,Histology ,medicine.diagnostic_test ,business.industry ,Merkel cell carcinoma ,Chronic lymphocytic leukemia ,General Medicine ,medicine.disease ,Pathology and Forensic Medicine ,medicine.anatomical_structure ,Small-blue-round-cell tumor ,Immunophenotyping ,Fine-needle aspiration ,Monoclonal ,Biopsy ,Medicine ,business ,Lymph node - Abstract
We report an extremely rare case of skin collision tumor between primary Merkel cell carcinoma (MCC) and chronic lymphocytic leukemia/small lymphocytic lymphoma (CLL/SLL) first diagnosed on ultrasound-guided fine-needle aspiration biopsy (US-FNA). A 95-year-old female with a history of CLL presented with a slow growing left malar mass was referred to our clinic for US-FNA. US scan showed a well-defined subcutaneous mass (2.78 cm) with complex echogenicity. On-site assessment showed a cellular aspiration which was interpreted as small blue round cell tumor. On further examination, smears and cell block showed dimorphic populations of relatively larger cells with neuroendocrine features and smaller lymphoid cells. Immunocytochemical studies of cell block sections revealed that the larger cells were positive for CD56, Chromogranin, Synaptophysin, CK8/18, CK20 (dot-like pattern); and the smaller cells were positive for CD45. Flow cytometric analysis showed a majority of CD16/CD56 positive cells, 17% of monoclonal B-cells, and 14% of reactive T cells. The immunophenotype of the monoclonal B cells were of CLL/SLL. The diagnosis of a collision tumor composed of primary MCC and CLL/SLL was confirmed. Surgical resection of the mass one month later concurred with the FNA cytological diagnosis. The fact that surgical specimen displayed a solid tumor with both CLL/SLL and MCC components ruled out the possibility that the FNA merely had MCC with peripheral leukemic blood contaminant. No additional MCC lesion was found in the patient, which ruled out the possibility of metastatic MCC to a lymphomatous lymph node.
- Published
- 2014
17. Application of The Milan System in Salivary Gland Lesions with Cytology-Surgical Correlation
- Author
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Jun Fan, Maoxin Wu, and Alan Heimann
- Subjects
Pathology ,medicine.medical_specialty ,medicine.anatomical_structure ,Salivary gland ,business.industry ,Cytology ,Medicine ,business ,Pathology and Forensic Medicine - Published
- 2019
18. Ferruginous Body in the Setting of Adenocarcinoma in a World Trade Center First Responder
- Author
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Maoxin Wu and Stephanie Liu
- Subjects
First responder ,medicine.medical_specialty ,Ferruginous body ,business.industry ,General surgery ,medicine ,World trade center ,Adenocarcinoma ,General Medicine ,medicine.disease ,business ,Surgery - Published
- 2016
19. Correlation Study between Combined Thyroid Imaging Report and Data System (TI-RADS) and Bethesda System for Thyroid Nodules - An Interventional Cytopathologist's Experience
- Author
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Maoxin Wu
- Subjects
Thyroid nodules ,medicine.medical_specialty ,medicine.anatomical_structure ,medicine.diagnostic_test ,business.industry ,Imaging report ,Bethesda system ,Thyroid ,medicine ,Radiology ,business ,medicine.disease ,Pathology and Forensic Medicine - Published
- 2017
20. Evaluation of a scoring system for predicting lymph node malignancy in ultrasound guided fine needle aspiration practice
- Author
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Maoxin Wu, Hua Chen, XiaoYong Zheng, David E. Burstein, and Dara Aisner
- Subjects
medicine.medical_specialty ,Histology ,Scoring system ,medicine.diagnostic_test ,business.industry ,Echogenicity ,General Medicine ,Gold standard (test) ,Malignancy ,medicine.disease ,Ultrasound guided ,Pathology and Forensic Medicine ,medicine.anatomical_structure ,Fine-needle aspiration ,medicine ,Cutoff ,Radiology ,business ,Lymph node - Abstract
Ultrasound-guided fine needle aspiration (USG-FNA) has enabled cytopathologists to accurately diagnose smaller or non-palpable lymph nodes (LN) on a regular basis. Pre-FNA clinical and ultrasonographic factors, such as a patient's age, ratio of short to long axis diameter (S/L ratio), internal echogenicity, and the vascular pattern of a LN, are reported to be able to predict the benign or malignant nature of a LN. This study is designed to test the formula “0.06 × (age) + 4.76 × (S/L ratio) + 2.15 × (internal echo) + 1.80 × (vascular pattern)” generated from the study of Liao et al. as a scoring system for predicting LN malignancy in a cytopathologist operated USG-FNA practice. Eighty-three reports of USG-FNA of LNs issued between 7/1/2008 and 4/28/2010 were reviewed. Patient's age, S/L ratio, internal echo, and vascular pattern were used to generate scores based on the aforementioned formula. A score of seven was used as a cutoff for predicting benign ( 7) LNs. FNA cytology diagnosis, flow cytometric analysis as well as subsequent surgical diagnosis in some cases served as gold standard for statistical analysis. Among 46 USG-FNA of LNs with scores > 7, 38 were malignant and eight were benign. All 37 USG-FNA of LNs with scores < 7 were proven to be benign. The scoring system achieved 100% sensitivity, 82% specificity, 83% positive predictive value, 100% negative predictive value, and 90% accuracy. Further study of the eight “false-positive” cases revealed that three of them (37.5%) were found to be malignant in follow-up FNA and/or surgical biopsy. This scoring system may serve as a complementary tool in determining how aggressive a FNA procedure should be performed, how a FNA sample of LN should be triaged for ancillary study, and how closely a patient with lymphadenopathy should be followed up. Diagn. Cytopathol. 2013;41:1100–1106. © 2011 Wiley Periodicals, Inc.
- Published
- 2011
21. MicroRNA Prognostic Signature for Nodal Metastases and Survival in Esophageal Adenocarcinoma
- Author
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Arjun Pennathur, James D. Luketich, Maoxin Wu, Andrew Feber, William E. Gooding, Virginia R. Litle, Tony E. Godfrey, Santhoshi Bandla, and Liqiang Xi
- Subjects
Male ,Pulmonary and Respiratory Medicine ,Pathology ,medicine.medical_specialty ,Esophageal Neoplasms ,Colorectal cancer ,medicine.medical_treatment ,Adenocarcinoma ,Disease-Free Survival ,Article ,Targeted therapy ,Metastasis ,Cohort Studies ,Prostate cancer ,Predictive Value of Tests ,microRNA ,Biomarkers, Tumor ,medicine ,Humans ,Neoplasm Invasiveness ,Lymph node ,Aged ,Neoplasm Staging ,Proportional Hazards Models ,Retrospective Studies ,Reverse Transcriptase Polymerase Chain Reaction ,business.industry ,Cancer ,Middle Aged ,Prognosis ,medicine.disease ,Survival Analysis ,Esophagectomy ,Gene Expression Regulation, Neoplastic ,MicroRNAs ,medicine.anatomical_structure ,Lymphatic Metastasis ,Multivariate Analysis ,Cancer research ,Female ,Surgery ,Cardiology and Cardiovascular Medicine ,business - Abstract
Background The incidence of esophageal adenocarcinoma is rapidly increasing and is now one of the leading causes of cancer death in the western world. MicroRNAs (miRNAs) are small noncoding RNAs that regulate the expression of protein-encoding genes and are involved in the development, progression and prognosis of other malignancies. We hypothesized that global miRNA expression would predict survival and lymph node involvement in a cohort of surgically resected esophagus cancer patients. Methods The miRNA analysis was performed using a custom Affymetrix microarray with probes for 462 known human, 2,102 predicted human, 357 mouse, and 238 rat miRNAs. Expression of miRNA was evaluated in 45 primary tumors, and the association of miRNA expression with patient survival and lymph node metastasis was assessed. The prognostic impact of identified unique miRNAs was verified with quantitative reverse transcriptase polymerase chain reaction. Results Our data indicate that the expression of individual human miRNA species is significantly associated with postresection patient survival. Using data from five unique miRNAs, we were further able to generate a combined miRNA expression signature that is associated with patient survival ( p = 0.005; hazard ratio 3.6) independent of node involvement and overall stage. The expression of three miRNAs (miR-99b and miR-199a_3p and _5p) was also associated with the presence of lymph node metastasis. Conclusions These results suggest miRNA expression profiling could provide prognostic utility in staging esophagus cancer patients and treatment planning with endoscopic and neoadjuvant therapies. The alterations of specific miRNAs may further elucidate steps in the metastatic pathway and allow for development of targeted therapy.
- Published
- 2011
22. Evaluating the Quality of Rapid On-Site Evaluation during EUS-guided Fine Needle Aspiration of Pancreatic Lesions Performed by Cytotechnologists in Comparison to Cytotechnologists Paired with Cytopathologists at a Single Institution
- Author
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Ina Chan and Maoxin Wu
- Subjects
medicine.medical_specialty ,Fine-needle aspiration ,medicine.diagnostic_test ,business.industry ,Medicine ,Radiology ,Single institution ,Site evaluation ,business ,Pathology and Forensic Medicine - Published
- 2018
23. A Correlation Study between Thyroid Imaging Report and Data System (TI-RADS) and The Bethesda System for Reporting Thyroid Cytology (TBSRTC) with ThyroSeq Test and Surgical Follow-Up - An Interventional Cytopathologist's Experience
- Author
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Maoxin Wu
- Subjects
medicine.medical_specialty ,medicine.diagnostic_test ,Imaging report ,business.industry ,Thyroid ,Bethesda system ,Surgical follow-up ,Pathology and Forensic Medicine ,Test (assessment) ,medicine.anatomical_structure ,Cytology ,medicine ,Radiology ,business - Published
- 2018
24. Metastatic hepatocellular carcinoma presenting as a pancreatic mass by computed tomography scan and mimicking a primary neuroendocrine tumor: A potential pitfall in aspiration cytology
- Author
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Arnold H. Szporn, Valerie A. Fitzhugh, Anthony Borcich, Hongfa Zhu, Maoxin Wu, Hua Chen, and Stacey A. Kim
- Subjects
Male ,Endoscopic ultrasound ,medicine.medical_specialty ,Pathology ,Carcinoma, Hepatocellular ,Histology ,Computed tomography ,Pathology and Forensic Medicine ,Metastasis ,Diagnosis, Differential ,Biomarkers, Tumor ,medicine ,Pancreatic mass ,Animals ,Humans ,Metastatic hepatocellular carcinoma ,medicine.diagnostic_test ,business.industry ,Biopsy, Needle ,Liver Neoplasms ,General Medicine ,Middle Aged ,medicine.disease ,Immunohistochemistry ,Aspiration cytology ,Pancreatic Neoplasms ,Neuroendocrine Tumors ,medicine.anatomical_structure ,Hepatocellular carcinoma ,Radiology ,Tomography, X-Ray Computed ,Pancreas ,business - Abstract
Hepatocellular carcinoma (HCC) is a highly malignant neoplasm, often presenting at late stage and portending a poor prognosis for the patient. The peripancreatic fat is a rare site of extrahepatic metastasis, and metastatic HCC can mimic primary pancreatic neoplasms, even in this location. It is crucial to be aware of this pitfall in the evaluation of aspiration cytology of pancreatic neoplasms and to develop a strategy to reach the correct diagnosis. We present an endoscopic ultrasound fine-needle aspiration diagnosis of metastatic HCC presenting as a pancreatic mass radiologically that had neuroendocrine features on various cytological and histological preparations. The metastatic lesions were located surgically in the peripancreatic adipose tissue with involvement of one peripancreatic lymph node. This case illustrates the utility of FNA for diagnosing uncommon presentations of HCC and the importance of clinical history, cell block, and an immunocytochemical panel in determining the origin of the tumor. Diagn. Cytopathol. 2009. © 2009 Wiley-Liss, Inc.
- Published
- 2009
25. Case Report: Lung Disease in World Trade Center Responders Exposed to Dust and Smoke: Carbon Nanotubes Found in the Lungs of World Trade Center Patients and Dust Samples
- Author
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Maoxin Wu, Jacqueline Moline, William D. Travis, David S. Mendelson, Maria Padilla, Virginia R. Litle, Robin Herbert, Joan Gil, and Ronald E. Gordon
- Subjects
Adult ,Lung Diseases ,Male ,medicine.medical_specialty ,Health, Toxicology and Mutagenesis ,In Vitro Techniques ,complex mixtures ,03 medical and health sciences ,0302 clinical medicine ,Environmental health ,Smoke ,medicine ,Humans ,Lung ,030304 developmental biology ,interstitial lung disease ,0303 health sciences ,carbon nanotubes ,business.industry ,Nanotubes, Carbon ,Research ,small airway disease ,Public Health, Environmental and Occupational Health ,World trade center ,Dust ,Environmental Exposure ,Middle Aged ,humanities ,3. Good health ,Surgery ,030228 respiratory system ,Lung disease ,bronchiolitis ,WTC ,Female ,September 11 Terrorist Attacks ,business - Abstract
Context After the collapse of the World Trade Center (WTC) on 11 September 2001, a dense cloud of dust containing high levels of airborne pollutants covered Manhattan and parts of Brooklyn, New York. Between 60,000 and 70,000 responders were exposed. Many reported adverse health effects. Case presentation In this report we describe clinical, pathologic, and mineralogic findings in seven previously healthy responders who were exposed to WTC dust on either 11 September or 12 September 2001, who developed severe respiratory impairment or unexplained radiologic findings and underwent video-assisted thoracoscopic surgical lung biopsy procedures at Mount Sinai Medical Center. WTC dust samples were also examined. We found that three of the seven responders had severe or moderate restrictive disease clinically. Histopathology showed interstitial lung disease consistent with small airways disease, bronchiolocentric parenchymal disease, and nonnecrotizing granulomatous condition. Tissue mineralogic analyses showed variable amounts of sheets of aluminum and magnesium silicates, chrysotile asbestos, calcium phosphate, and calcium sulfate. Small shards of glass containing mostly silica and magnesium were also found. Carbon nanotubes (CNT) of various sizes and lengths were noted. CNT were also identified in four of seven WTC dust samples. Discussion These findings confirm the previously reported association between WTC dust exposure and bronchiolar and interstitial lung disease. Long-term monitoring of responders will be needed to elucidate the full extent of this problem. The finding of CNT in both WTC dust and lung tissues is unexpected and requires further study.
- Published
- 2009
26. Feasibility of immunocytochemical detection of tumor markers (XIAP, phosphohistone H1 and p63) in FNA cellblock samples from head and neck squamous cell carcinoma
- Author
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Eric M. Genden, Maoxin Wu, A. Kafanas, D S Kohtz, Li Gan, L. Zhang, and David Burstein
- Subjects
Pathology ,medicine.medical_specialty ,Histology ,Future studies ,Biopsy, Fine-Needle ,X-Linked Inhibitor of Apoptosis Protein ,Pathology and Forensic Medicine ,Histones ,Biomarkers, Tumor ,medicine ,Humans ,Cell block ,Kinase ,business.industry ,Tumor Suppressor Proteins ,General Medicine ,Phosphoproteins ,medicine.disease ,Immunohistochemistry ,Head and neck squamous-cell carcinoma ,XIAP ,Staining ,Head and Neck Neoplasms ,Carcinoma, Squamous Cell ,Trans-Activators ,Cancer research ,Feasibility Studies ,business ,Transcription Factors - Abstract
One of the major handicaps in contemporary clinical oncology is the inability to predict the responsiveness of any individual's malignancy to specific therapies. The purpose of this study was to test the feasibility of immunocytochemically detecting markers that may be affected by therapy or are predictive of therapeutic responsiveness, including phosphohistone H1 (anti-p-H1 MoAb 12D11) and X-linked inhibitor of apoptosis (XIAP) in small samples obtained via fine-needle aspiration (FNA) biopsy procedure, thus improving therapeutic monitoring. p63, a squamous stem cell regulatory protein, was also examined. These three markers were studied in FNA cell block samples of head and neck squamous cell carcinoma (HNSCC). Twenty-eight alcohol-fixed formalin-postfixed paraffin-embedded cell-block samples from FNAs of patients with HNSCC were subjected to antigen retrieval and then incubated with anti-XIAP, anti-p-H1, and anti-p63, and developed using EnVision-Plus reagents and diaminobenzidine as chromagen; Granular or heterogeneous cytoplasmic staining for XIAP and nuclear staining for p63 and p-H1 were considered positive. Among the 28 cases studied, the overall positive rates for XIAP, p-H1, and p63 were 60.7%, 96.4%, and 92.8%, respectively. The staining intensity for XIAP: + 70.6%, ++ 23.5%, +++ 0%, and ++++ 5.9%; for p-H1: + 48.1%, ++ 11.1%, +++37.0%, and ++++ 3.7%; and for p63: + 11.5%, ++ 23.1%, +++ 53.9%, and ++++ 11.5%. The expression of p-H1 and p63 appeared to be higher and stronger than that of XIAP in HNSCC. This study demonstrated the feasibility of monitoring expression of three tumor markers using FNA samples. p-H1 and XIAP may be useful for monitoring actions of cyclin-dependent kinase inhibitors, XIAP-lowering, and/or apoptosis-inducing drugs, respectively. Future studies will focus on the impact of therapies upon these staining profiles.
- Published
- 2008
27. An immunohistochemical study of XIAP expression in pleomorphic adenoma and carcinoma ex pleomorphic adenoma
- Author
-
Benjamin Hoch, Michael Alexander Oxenham Lewis, Maoxin Wu, Li Gan, and David Burstein
- Subjects
Cancer Research ,Pathology ,medicine.medical_specialty ,Adenoma ,Biology ,medicine.disease ,Inhibitor of apoptosis ,Pathology and Forensic Medicine ,XIAP ,Pleomorphic adenoma ,Carcinoma ex pleomorphic adenoma ,Otorhinolaryngology ,medicine ,Carcinoma ,Periodontics ,Adenocarcinoma ,Immunohistochemistry ,Oral Surgery - Abstract
Background X-linked inhibitor of apoptosis protein (XIAP) is a member of the inhibitor of apoptosis proteins family of caspase inhibitors. Expression of XIAP in various neoplasms has been associated with aggressive behavior. The biological progression from pleomorphic adenoma (PA) to carcinoma ex pleomorphic adenoma (CXPA) has been poorly understood. We studied XIAP expression by immunohistochemistry in PA and CXPA. Materials and methods Formalin-fixed, paraffin-embedded representative sections of 14 cases of PA and seven cases of CXPA (four invasive and three intracapsular) were stained with anti-XIAP (# 610763; BD Biosciences, San Jose, CA, USA) following citrate-based antigen retrieval. Granular cytoplasmic staining was considered positive and intensity was assessed from weak (1+) to strong (3+). PAs were morphologically evaluated for cellularity, cytological atypia and mitotic activity. Results Of the seven PAs composed mostly of myxohyaline stroma with scattered ductal elements, two tumors showed no staining and five showed rare ( Conclusion Increased expression of XIAP from PA to cellular PA to CXPA and in atypical cells within cellular areas of PA adds to our growing understanding of defective apoptotic pathways in malignant transformation in this group of salivary gland tumors and suggests an adenoma to adenocarcinoma model of progression. Further correlation with other oncogene expression may provide insight into the multiple molecular pathways that are affected in these tumors. Targeted therapy of XIAP may play a future role in the management of CXPA.
- Published
- 2008
28. Current overview of the role of Akt in cancer studies via applied immunohistochemistry
- Author
-
Viktor Shtilbans, Maoxin Wu, and David Burstein
- Subjects
Male ,Pathology ,medicine.medical_specialty ,Kinase ,Cancer ,General Medicine ,Biology ,medicine.disease_cause ,medicine.disease ,Immunohistochemistry ,Pathology and Forensic Medicine ,Squamous carcinoma ,Neoplasms ,Biomarkers, Tumor ,medicine ,Humans ,Phosphorylation ,Adenocarcinoma ,Female ,Carcinogenesis ,Proto-Oncogene Proteins c-akt ,Protein kinase B ,PI3K/AKT/mTOR pathway - Abstract
The family of AKT kinases, AKT-1, 2, and 3, collectively play a crucial role in key processes, as well as pathologic processes such as oncogenesis. The numerous AKT phosphorylation targets include proteins essential to the regulation of cell cycling, protein translation, suppression of programmed cell death, all of which, upon activation via AKT-mediated phosphorylation, promote tumor growth, survival, and aggressiveness. Activation of the AKT pathway can be immunohistochemically detected with antibodies that specifically react with phosphorylated or nonphosphorylated forms of AKT. The following review summarizes the use of phospho-AKT immunohistochemistry as a potentially valuable tool in cancer prognostication in a wide spectrum of common and uncommon malignancies, including squamous carcinoma of cervix and of head and neck; adenocarcinoma of endometrium, ovarian, breast, prostate, kidney, colon, and pancreas; carcinomas of lung and thyroid; and hematopoietic, soft tissue, and central nervous system neoplasms. To date, the findings overall suggest that the major use of p-AKT immunohistochemical staining lies in prognostication and possibly in individualization of therapy rather than in differential diagnosis.
- Published
- 2008
29. Successful endoscopic ultrasound-guided fine-needle aspiration through a gastroduodenal stent for the diagnosis of recurrent gallbladder carcinoma
- Author
-
Maoxin Wu, Christopher J. DiMaio, and Anoop Prabhu
- Subjects
Endoscopic ultrasound ,medicine.medical_specialty ,medicine.diagnostic_test ,business.industry ,Gastric Outlet Obstruction ,medicine.medical_treatment ,Gastroenterology ,Stent ,Adenocarcinoma ,Middle Aged ,Fine-needle aspiration ,medicine ,Humans ,Female ,Gallbladder Neoplasms ,Stents ,Radiology ,Recurrent Gallbladder Carcinoma ,Neoplasm Recurrence, Local ,business ,Endoscopic Ultrasound-Guided Fine Needle Aspiration - Published
- 2015
30. A Comparative Study of 200 Fine Needle Aspiration Biopsies Performed by Clinicians and Cytopathologists
- Author
-
Eric M. Genden, David Burstein, Maoxin Wu, Songyang Yuan, David Y. Zhang, Leslie A. Nurse, and Arnold H. Szporn
- Subjects
Observer Variation ,medicine.medical_specialty ,FNA biopsy ,medicine.diagnostic_test ,business.industry ,Biopsy, Fine-Needle ,Reproducibility of Results ,Tertiary care ,Diagnosis, Differential ,body regions ,Surgical pathology ,surgical procedures, operative ,Fine-needle aspiration ,Otorhinolaryngology ,Head and Neck Neoplasms ,Biopsy ,Surgical biopsy ,medicine ,Humans ,Radiology ,Practice Patterns, Physicians' ,Differential diagnosis ,skin and connective tissue diseases ,Head and neck ,business - Abstract
Fine needle aspiration (FNA) biopsy is a useful tool in the diagnosis and management of suspicious masses. Most FNA biopsies of palpable masses can be performed without radioguidance by either clinicians or cytopathologists; however, it is unclear if there is a difference in the diagnostic yield of the procedure based on who performs the FNA. We reviewed the FNA biopsy results of 200 patients presenting with head and neck masses to a tertiary care center from 2003 to 2004. One hundred FNA biopsies were performed by clinicians and 100 performed by cytopathologists. Seventy-one underwent subsequent surgical biopsy or definitive surgery. Results of the FNA biopsies performed by the clinicians and the cytopathologists were compared based on the percentages of FNAs that were diagnostic, suspicious/suggestive, and nondiagnostic. Additionally, the pathology results of the 71 surgical biopsies or resections were compared with the preoperative FNA results. Of the 100 FNA biopsies performed by cytopathologists, 83% were diagnostic, 10% were suspicious/suggestive, and 7% were nondiagnostic. Of the 100 FNA biopsies performed by clinicians, 24% were diagnostic, 43% were suspicious/suggestive, and 33% were nondiagnostic. Cytopathologists achieved significantly better results (P
- Published
- 2006
31. p63 immunostaining in destained bronchoscopic cytological specimens
- Author
-
David E. Burstein, Arnold H. Szporn, Viktor Shtilbans, and Maoxin Wu
- Subjects
Pathology ,medicine.medical_specialty ,Lung Neoplasms ,Histology ,Small-cell carcinoma ,Pathology and Forensic Medicine ,chemistry.chemical_compound ,Bronchoscopy ,Biopsy ,Biomarkers, Tumor ,Carcinoma ,medicine ,Humans ,Genes, Tumor Suppressor ,Carcinoma, Small Cell ,Immunoperoxidase ,medicine.diagnostic_test ,business.industry ,Tumor Suppressor Proteins ,General Medicine ,Phosphoproteins ,medicine.disease ,Immunohistochemistry ,Staining ,Squamous carcinoma ,DNA-Binding Proteins ,stomatognathic diseases ,Antigen retrieval ,chemistry ,Carcinoma, Squamous Cell ,Trans-Activators ,business ,Immunostaining ,Transcription Factors - Abstract
The p53 homologous squamous stem-cell regulatory protein p63 is expressed in squamous carcinomas but is not characteristically detected in small-cell carcinomas (SCCs). A panel of thyroid transcription factor (TTF) 1 and p63 has been shown to be useful in distinguishing SCCs from poorly differentiated squamous carcinoma of the lung (PDSLC) in small biopsies and cytological cell blocks. Because tumor samples frequently are limited to cytological smears, we attempted to detect p63 in destained slides from a spectrum of pulmonary malignancies. Archival alcohol-fixed smears from 60 cases of cytologically diagnosed malignancies in bronchoscopically (n = 59) or fine-needle aspiration-obtained specimens (n = 1) were destained in acid alcohol, postfixed in 10% formalin, subjected to citrate-based antigen retrieval, and immunostained by exposure to anti-p63 monoclonal antibody 4A4, followed by reagents from a streptavidin-biotin immunoperoxidase kit, and diaminobenzidine as the chromogen. Postfixation in 10% formalin was found to be necessary for immunostaining. Normal ciliated and goblet cells were p63 negative, but reserve cells were p63 positive. All cases of squamous-cell carcinoma were positive for p63. Of 10 tumor samples originally diagnosed as SCC, only 6 samples were p63 negative and 4 samples exhibited positive staining. However, proper interpretation of the immunohistochemical (IHC) staining pattern and careful scrutiny of the cytological features and biopsy specimens in three of four cases led us to reclassify three cases into PDSLC. All adenocarcinomas (ACAs; n = 12), large-cell carcinomas (n = 4), and metastatic ACAs (n = 5) were p63 negative. Positive staining was seen in 9/16 tumors designated as non-SCCs; these tumors were not classified further into distinct histological categories. p63 staining in destained slides may be of value in facilitating the differential diagnosis between PDSLC and SCC. Criteria for conservative interpretation of results are discussed and include examination of reserve cells and ciliated cells on the same slide as internal positive and negative controls. Diagn. Cytopathol. 2005;32:198–203. © 2005 Wiley-Liss, Inc.
- Published
- 2005
32. Increase in the Incidence of Peritoneal Collagen Balls Over a 10-Year Period
- Author
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Maoxin Wu, David Burstein, Xiaowei Chen, Arnold H. Szporn, and Edmond Sabo
- Subjects
Male ,Vaginal Smears ,medicine.medical_specialty ,Pathology ,Histology ,Staining and Labeling ,business.industry ,Urology ,General Medicine ,Pathology and Forensic Medicine ,Unknown Significance ,Case records ,Ball (bearing) ,Ascitic Fluid ,Humans ,Medicine ,Female ,Peritoneal Lavage ,Collagen ,business ,Specimen processing ,Cell block ,Papanicolaou Test ,Retrospective Studies - Abstract
Objective To describe the detection of collagen balls in peritoneal washings over a 10-year period, revealing an unexpected and unexplained higher incidence than in the past. Study design Reports of routinely processed, Papanicolaou-stained smears and cytospins and hematoxylineosin-stained cell blocks from peritoneal washes and ascitic fluids seen over an 8-year period (1995-2002) were reviewed, and the percentage of specimens in which collagen balls were noted was determined. To rule out a learning curve phenomenon, the first 100 consecutive peritoneal washings and ascitic specimens from years 1993-2001 plus 2002 were rescreened, and the percentage of specimens containing collagen balls was determined. Results The percentages of cases with collagen balls increased steadily beginning with 8 of 467 cases (3.2%) in 1995 to 185 of 650 (28.5%) in 2002, as reported in the case records. Rescreened cases also showed a similar increase, 4.0% in 1993 to 29% in 2002. No procedural modifications were made in specimen processing during this interval, nor are we aware of any procedural change in obtaining cytologic samples. Conclusion An unexplained 7-fold increase in the percentage of peritoneal samples with collagen balls occurred over a 10-year period. This increase cannot be attributed to changes in specimen handling or to a learning curve phenomenon. This finding is of unknown significance and may warrant further investigation.
- Published
- 2005
33. Is Fine Needle Aspiration Cell Block Sufficient for Lung Cancer Therapeutic Marker Studies
- Author
-
Maoxin Wu and Daniel Coldren
- Subjects
Pathology ,medicine.medical_specialty ,Fine-needle aspiration ,medicine.diagnostic_test ,business.industry ,medicine ,Lung cancer ,medicine.disease ,business ,Cell block ,Pathology and Forensic Medicine - Published
- 2016
34. ThyroSeq V2 Application Study for Indeterminate Thyroid FNAs with Surgical Follow Up - Experience at a University Hospital
- Author
-
Alan Heimann, Maoxin Wu, Sonya Hwang, Kenneth R. Shroyer, and Rokhsareh Khatami
- Subjects
0301 basic medicine ,Pediatrics ,medicine.medical_specialty ,business.industry ,Thyroid ,030209 endocrinology & metabolism ,General Medicine ,University hospital ,Surgical follow-up ,Pathology and Forensic Medicine ,03 medical and health sciences ,030104 developmental biology ,0302 clinical medicine ,medicine.anatomical_structure ,Emergency medicine ,medicine ,Indeterminate ,business - Published
- 2016
35. Applying a Lymph Node Ultrasound Scoring System to Thyroid Ultrasound Guided Fine Needle Aspiration
- Author
-
Christopher Metter and Maoxin Wu
- Subjects
medicine.medical_specialty ,Fine-needle aspiration ,medicine.anatomical_structure ,Scoring system ,medicine.diagnostic_test ,business.industry ,Ultrasound ,medicine ,Radiology ,Thyroid ultrasound ,business ,Lymph node ,Pathology and Forensic Medicine - Published
- 2016
36. p63 and TTF-1 Immunostaining
- Author
-
David Burstein, Maoxin Wu, Li Gan, Lorraine K. Miller, Beverly Y. Wang, Joan Gil, and Edmond Sabo
- Subjects
endocrine system ,Pathology ,medicine.medical_specialty ,medicine.diagnostic_test ,H&E stain ,General Medicine ,Lung biopsy ,respiratory system ,Biology ,medicine.disease ,Stain ,Staining ,Biopsy ,medicine ,Carcinoma ,Small Cell Lung Carcinoma ,Immunostaining - Abstract
We studied the usefulness of p63 and thyroid transcription factor–1 (TTF-1) immunostains for differentiating poorly differentiated squamous cell carcinoma (PDSCC) from small cell lung carcinoma (SCLC). We used monoclonal antibodies reactive to p63 or TTF-1 to stain 4-μm-thick sections from 30 formalin-fixed, paraffin-embedded lung biopsy and resection specimens and 7 alcohol-fixed, formalin-postfixed, paraffin-embedded cell blocks from lung fine-needle aspirations (FNAs). For p63, we used a streptavidin-biotin kit, diaminobenzidine as the chromogen, and a hematoxylin counterstain. We used automated immunostaining for TTF-1. The 37 cases included 23 SCLCs, 13 PDSCCs, and 1 carcinoma initially diagnosed as PDSCC. All 23 SCLCs were negative or, rarely, equivocal for p63; 20 (87%) of 23 were TTF-1+; nuclear staining ranged from strong and/or frequent to weak and/or uncommon. All 13 PDSCCs were TTF-1–/p63+ with intense staining of 50% to 100% of tumor cells. One case originally diagnosed as PDSCC was TTF-1+/p63–, suggestive of SCLC; after morphologic reexamination and immunostaining for neuroendocrine markers, it was reclassified as intermediate-type SCLC. TTF-1 immunostaining showed equal or increased sensitivity in alcohol-fixed cytologic cell block samples compared with formalin-fixed biopsy material; in 1 SCLC case, the biopsy specimen was TTF-1–; however, the FNA cell block stained positively. p63 and TTF-1 appear to be useful for differentiating SCLC from lung PDSCC in formalin-fixed and alcohol-fixed, formalin-postfixed material.
- Published
- 2003
37. p63 and TTF-1 Immunostaining: A Useful Marker Panel for Distinguishing Small Cell Carcinoma of Lung From Poorly Differentiated Squamous Cell Carcinoma of Lung
- Author
-
Beverly Y. Wang, Lorraine K. Miller, Joan Gil, Edmond Sabo, David Burstein, Li Gan, and Maoxin Wu
- Subjects
endocrine system ,Pathology ,medicine.medical_specialty ,Lung Neoplasms ,Thyroid Nuclear Factor 1 ,H&E stain ,Lung biopsy ,Biology ,Small-cell carcinoma ,Diagnosis, Differential ,Biopsy ,Carcinoma ,medicine ,Humans ,Genes, Tumor Suppressor ,Carcinoma, Small Cell ,Paraffin Embedding ,medicine.diagnostic_test ,Tumor Suppressor Proteins ,Antibodies, Monoclonal ,Membrane Proteins ,Nuclear Proteins ,General Medicine ,respiratory system ,Phosphoproteins ,medicine.disease ,Immunohistochemistry ,DNA-Binding Proteins ,Epidermoid carcinoma ,Carcinoma, Squamous Cell ,Trans-Activators ,Small Cell Lung Carcinoma ,Immunostaining ,Transcription Factors - Abstract
We studied the usefulness of p63 and thyroid transcription factor-1 (TTF-1) immunostains for differentiating poorly differentiated squamous cell carcinoma (PDSCC) from small cell lung carcinoma (SCLC). We used monoclonal antibodies reactive to p63 or TTF-1 to stain 4-microns-thick sections from 30 formalin-fixed, paraffin-embedded lung biopsy and resection specimens and 7 alcohol-fixed, formalin-postfixed, paraffin-embedded cell blocks from lung fine-needle aspirations (FNAs). For p63, we used a streptavidin-biotin kit, diaminobenzidine as the chromogen, and a hematoxylin counterstain. We used automated immunostaining for TTF-1. The 37 cases included 23 SCLCs, 13 PDSCCs, and 1 carcinoma initially diagnosed as PDSCC. All 23 SCLCs were negative or, rarely, equivocal for p63; 20 (87%) of 23 were TTF-1+; nuclear staining ranged from strong and/or frequent to weak and/or uncommon. All 13 PDSCCs were TTF-1-/p63+ with intense staining of 50% to 100% of tumor cells. One case originally diagnosed as PDSCC was TTF-1+/p63-, suggestive of SCLC; after morphologic reexamination and immunostaining for neuroendocrine markers, it was reclassified as intermediate-type SCLC. TTF-1 immunostaining showed equal or increased sensitivity in alcohol-fixed cytologic cell block samples compared with formalin-fixed biopsy material; in 1 SCLC case, the biopsy specimen was TTF-1-; however, the FNA cell block stained positively. p63 and TTF-1 appear to be useful for differentiating SCLC from lung PDSCC in formalin-fixed and alcohol-fixed, formalin-postfixed material.
- Published
- 2003
38. Application of ThyroSeq for Classification of Indeterminate Thyroid FNAs - Experience at a University Hospital
- Author
-
Maoxin Wu, Kenneth R. Shroyer, Sonya Hwang, and Alan Heimann
- Subjects
medicine.medical_specialty ,medicine.anatomical_structure ,business.industry ,Thyroid ,Emergency medicine ,medicine ,Indeterminate ,University hospital ,business ,Pathology and Forensic Medicine - Published
- 2015
39. Minimum Lung Tumor Cell Threshold in Fine Needle Aspiration Cell Blocks Required for Therapeutic Marker Studies
- Author
-
Maoxin Wu, Daniel Coldren, and Keith Sweeney
- Subjects
Pathology ,medicine.medical_specialty ,Fine-needle aspiration ,medicine.anatomical_structure ,medicine.diagnostic_test ,business.industry ,Cell ,Medicine ,Lung tumor ,business ,Cell block ,Pathology and Forensic Medicine - Published
- 2017
40. Study of Onsite Cytology Diagnostic Accuracy for Renal Cryoablation
- Author
-
Agnieszka Szygalowicz and Maoxin Wu
- Subjects
medicine.medical_specialty ,business.industry ,medicine.medical_treatment ,Cytology ,medicine ,Cryoablation ,Diagnostic accuracy ,Radiology ,business ,Pathology and Forensic Medicine - Published
- 2017
41. Ultrasound guided fine needle aspiration cytology diagnosis of collision tumor in a lymph node: Lymphoma and metastatic adenocarcinoma
- Author
-
Dhanalaksmi Balakrishnan, Qian Wang, and Maoxin Wu
- Subjects
Pathology ,medicine.medical_specialty ,medicine.diagnostic_test ,business.industry ,Chronic lymphocytic leukemia ,General Medicine ,medicine.disease ,Supraclavicular lymph nodes ,Lymphoma ,medicine.anatomical_structure ,Fine-needle aspiration ,hemic and lymphatic diseases ,Biopsy ,medicine ,Adenocarcinoma ,Sputum ,medicine.symptom ,business ,neoplasms ,Lymph node - Abstract
Diagnosis of two distinct malignancies in a single sample is rare. Here we report a case of lung adenocarcinoma metastasized to a supraclavicular lymph node which was concomitantly diagnosed with chronic lymphocytic leukemia/small lymphocytic lymphoma (CLL/SLL) using ultrasound-guided fine needle aspiration biopsy (US-FNA) sample.A 62-year-old Caucasian male presented with cough and bloody sputum. US-FNA of a supraclavicular lymph node showed two distinct cell populations and, based on morphological examination and immunohistochemical staining of the FNA cell block slides, diagnosed with CLL/SLL and metastatic lung adenocarcinoma. Flow cytometric analysis of peripheral blood supported the diagnosis of CLL/SLL. To our knowledge, this is a rarely reported cytology case in which metastatic lung adenocarcinoma is concurrently diagnosed with CLL/SLL in a single lymph node and can be diagnosed based an FNA sample.
- Published
- 2017
42. Fine-needle aspiration of small pulmonary nodules yields material for reliable molecular analysis of adenocarcinomas
- Author
-
Zesong Zhang, Maoxin Wu, David F. Yankelevitz, Mary Beth Beasley, David Burstein, Fei Ye, Dianne Grunes, Fadi Salem, David Y. Zhang, Qiusheng Si, and Arnold H. Szporn
- Subjects
0301 basic medicine ,medicine.medical_specialty ,Pathology ,medicine.diagnostic_test ,business.industry ,Nodule (medicine) ,Rat Sarcoma ,medicine.disease_cause ,Pathology and Forensic Medicine ,Molecular analysis ,Lesion ,03 medical and health sciences ,030104 developmental biology ,0302 clinical medicine ,Fine-needle aspiration ,030220 oncology & carcinogenesis ,medicine ,Anaplastic lymphoma kinase ,KRAS ,Radiology ,medicine.symptom ,business ,Core biopsy - Abstract
Early molecular characterization with Kirsten rat sarcoma factor, epidermal growth factor, and anaplastic lymphoma kinase are critical to manage pulmonary adenocarcinoma. Fine-needle aspiration (FNA) of lesions2 cm are routine in our institution and are used in molecular analysis. We report our experience.We searched our databank for primary pulmonary adenocarcinomas diagnosed by FNA between January 2009 and April 2013. Size of the lesion aspirated, molecular results, and sample source (FNA versus surgical specimen) were recorded. We compared the frequency of mutations identified by FNA versus surgical specimens and the frequency of mutations in lesions by size (1 cm, 1-2 cm,2 cm).We identified 397 primary pulmonary adenocarcinomas. Molecular studies were requested by the clinician in 89 (22%) of primary adenocarcinomas. FNAs were used in 55 cases; 51 (93%) yielded sufficient material for molecular studies; surgical tissue were used in 34 cases; 33 (97%) yielded sufficient material for molecular studies. The insufficient specimens came from 2 FNAs of 0.6 cm nodules, an FNA of a 2 cm nodule, and a core biopsy.FNA was adequate for molecular analysis of small nodules. In nodules greater than 0.6 cm, the adequacy is comparable to surgical tissue. There was no statistically significant change in mutation rate by size (53%-58%). Importantly, FNA of small lesions for cytological diagnosis and molecular analysis is encouraged by our data and experience in order to provide early treatment.
- Published
- 2014
43. Lymphocytic Response and Inducible Nitric Oxide Synthase in WTC-Exposed Chronic Rhinosinusitis
- Author
-
Maoxin Wu, Andrew G. Sikora, David Cannan, Kenneth W. Altman, Charles C. L. Tong, and Nancy Jiang
- Subjects
CD20 ,Pathology ,medicine.medical_specialty ,education.field_of_study ,biology ,business.industry ,Lymphocyte ,Population ,Inflammation ,Disease ,Nitric oxide synthase ,medicine.anatomical_structure ,biology.protein ,Medicine ,Immunohistochemistry ,Clinical significance ,medicine.symptom ,business ,education - Abstract
Lymphocytic Response and Inducible Nitric Oxide Synthase in WTC-Exposed Chronic Rhinosinusitis Background: A significant number of people exposed to the World Trade Center (WTC) site following the terrorist attacks suffer from sinonasal symptoms. We hypothesize that patients who were acutely exposed but developed chronic symptoms may have a unique lymphocytic profile to sinonasal inflammation. Population: Retrospective review of pathology specimens from WTC-exposed subjects that underwent endoscopic sinus surgery at the Mount Sinai Medical Monitoring and Treatment Programs. Methods: Following approval from the WTC Population Protection Committee and the Mount Sinai Human Subjects Committee, pathology specimen blocks were obtained from 26 WTC-exposed and 26 non-WTC-exposed (control) subjects who underwent sinus surgery. Hematoxilyn & Eosin (H&E) stains were obtained, along with immunohistochemistry (IHC) for inducible nitric oxide synthase (iNOS), CD3, CD4, CD8 and CD20 lymphocytes. Slides were graded by 3 blinded trained raters on a scale of 0 to 3. Results: H&E staining was consistent among all specimens for acute and chronic inflammation. A Mann-Whitney U test was conducted, and the average rank of lymphocyte subpopulations (Controls vs. WTC-exposed) were: CD3 27.23 vs. 23.63 (z = -0.97, p = 0.33), CD4 27.54 vs. 23.29 (z = -1.27, p = 0.20), CD8 25.37 vs. 25.65 (z = -0.07, p = 0.94), CD20 27.15 vs. 23.71 (z = -0.98, p = 0.33), and iNOS 25.20 vs. 24.80 (z = 0.07, p = 0.94). There was no statistically significant difference in grading between the raters (linear-by-linear association, p = 0.18). Discussion: WTC-exposed patients with chronic rhinosinusitis (CRS) have demonstrable disease. Immune response by identification of lymphocytic subpopulation and inflammatory contributions from reactive oxygen species appear comparable to the standard patient with CRS. Clinical Significance: Chronic rhinosinusitis is present in the WTC-exposed population. Although anecdotal experience suggests a unique pattern of disease, the lymphocyte response in this population confirms the need for standardized care.
- Published
- 2014
44. Syphilitic lymphadenitis diagnosed via fine needle aspiration biopsy
- Author
-
Alifia Khan, Eric M. Genden, David W. Jang, and F.C.A.P. Maoxin Wu M.D.
- Subjects
Adult ,Male ,medicine.medical_specialty ,Histology ,Biopsy, Fine-Needle ,Neck mass ,Primary Syphilis ,Pathology and Forensic Medicine ,Lymphadenitis ,Cytology ,Biopsy ,medicine ,Humans ,Lymphocytes ,Syphilis ,Treponema pallidum ,medicine.diagnostic_test ,business.industry ,Medical record ,General Medicine ,medicine.disease ,Dermatology ,Surgery ,Fine-needle aspiration ,Differential diagnosis ,medicine.symptom ,business - Abstract
Syphilis is coming back in the recent a few decades especially in the gay and HIV populations. Since syphilis can be "the great mimic" clinically and pathologically, a case report with updated review can be helpful to the medical community. We report, a case of syphilitic lymphadenitis diagnosed via fine needle aspiration biopsy (FNAB). The pitfalls associated with the diagnosis of syphilitic lymphadenitis will be discussed. The patient's medical records were reviewed. The pertinent history, clinical course, and ancillary studies including FNAB cytology with special stains are presented. In addition to the case report, we discuss the diagnosis of syphilitic lymphadenitis and the role of FNAB cytology. This was a 37-year-old man presenting with a two-month history of a growing neck mass, night sweats, and a ten pound weight loss. The patient had been treated one month earlier for primary syphilis. Examination of the head and neck revealed a 3 cm right level II mass. FNAB cytology showed heterogeneous population of lymphocytes and plasma cells suggesting reactive changes. Modified silver staining of the cell block slide was performed and revealed spirochetes, consistent with syphilis. The patient's lymphadenitis resolved with a course of antibiotic treatment. Although lymphadenopathy is a rare presentation of syphilis, it should be included in the differential diagnosis for patients who offer a suspect history. FNAB with silver staining is an effective, minimally invasive way to confirm the diagnosis.
- Published
- 2010
45. A report of mesothelial/monocytic incidental cardiac excrescences and a literature review
- Author
-
Leonard B. Kahn, Anne Anderson, and Maoxin Wu
- Subjects
Male ,Pathology ,medicine.medical_specialty ,Heart Diseases ,Antigens, Differentiation, Myelomonocytic ,Diagnostic dilemma ,Epithelium ,Monocytes ,Pathology and Forensic Medicine ,Lesion ,Cytokeratin ,Antigens, CD ,medicine ,Humans ,Cardiac lesion ,Histiocyte ,Aged ,business.industry ,CD68 ,Myocardium ,General Medicine ,Immunohistochemistry ,Keratins ,medicine.symptom ,business ,Positive staining ,Mesothelial Cell - Abstract
We report the case of a rare cardiac lesion, mesothelial/monocytic incidental cardiac excrescences, and also provide a review of the literature. Diagnosis of this entity was based on both its unique morphologic features and imunohistochemical stains. Cytokeratin positivity confirmed the epithelial component, mesothelial cells, in the lesion. Positive staining of CD68 in the monocytic-appearing cells revealed the histiocytic nature of the second component of this lesion. Differential diagnoses are discussed. This report emphasizes the diagnostic dilemma encountered with this unusual entity and the possibility of misdiagnosing the epithelial portion as a metastatic lesion or visa versa.
- Published
- 2000
46. Lipid Level and Type Alter Stearoyl CoA Desaturase mRNA Abundance Differently in Mice with Distinct Susceptibilities to Diet-Influenced Diseases
- Author
-
Willard J. Visek, Patricia J. O'Morchoe, MaoXin Wu, Elizabeth A. Paisley, Eric I. Park, Stephen R. Behr, Jim Kaput, Heather Mangian, and Deborah A. Swartz
- Subjects
Apolipoprotein E ,medicine.medical_specialty ,food.ingredient ,Medicine (miscellaneous) ,Blood lipids ,Biology ,Mice ,chemistry.chemical_compound ,Apolipoproteins E ,food ,Species Specificity ,Inbred strain ,Internal medicine ,medicine ,Animals ,RNA, Messenger ,Aorta ,Triglycerides ,Mice, Inbred BALB C ,Lipoprotein lipase ,Nutrition and Dietetics ,Triglyceride ,Cholesterol ,Body Weight ,Coconut oil ,Dietary Fats ,Mice, Inbred C57BL ,Lipoprotein Lipase ,Endocrinology ,Gene Expression Regulation ,chemistry ,Biochemistry ,Female ,lipids (amino acids, peptides, and proteins) ,Stearoyl-CoA Desaturase ,Corn oil - Abstract
Chronic diseases develop in susceptible individuals following exposure to environmental conditions including high fat diets. Inbred strains of mice differing in susceptibility to atherosclerosis, diabetes, obesity and certain cancers are models for understanding the genetic basis and molecular mechanisms whereby diet influences these polygenic and multifactorial disorders. Expression sequence tags (EST) and disease quantitative trait loci (QTL) are also being identified with these strains. Reported here are comparisons of food intake, growth, nonfasting serum lipids and expression of mRNA for hepatic apolipoprotein E (ApoE), hepatic stearoyl CoA desaturase (Scd1) and heart lipoprotein lipase (Lpl) in a 2 x 2 x 2 design with C57BL/6J and BALB/cByJ mice fed semipurified diets with 4 or 20% saturated (coconut) or unsaturated (corn) oils for 4 mo. Histological studies of aortas and coronary arteries are also reported for these animals. After 4 mo, BALB/cByJ mice were significantly heavier and had significantly higher total serum cholesterol, HDL cholesterol and triglyceride concentrations in the fed state than C57BL/6J mice. Efficiency of utilizing dietary energy did not differ consistently between strains. Oil level affected serum total cholesterol, triglycerides and HDL cholesterol, which were significantly greater in mice fed high fat diets. Lpl and ApoE mRNA expression levels were not significantly affected by mouse strain, oil source or oil level. Scd1 mRNA expression, however, was significantly higher in C57BL/6J than in BALB/cByJ mice and was lower in all mice fed 20% compared with those fed 4% fat diets. Genes regulated differently by diet among strains with distinct susceptibility to diet-influenced disease may be associated with molecular pathways contributing to incidence or severity.
- Published
- 1997
47. Discrepancy Reduction in a Cytopathology Fellowship Program as Demonstrated with a GYN Case Screening Log
- Author
-
Fadi Salem, Arnold H. Szporn, Maoxin Wu, and Isil Yildiz-Aktas
- Subjects
Reduction (complexity) ,medicine.medical_specialty ,Pathology ,business.industry ,Cytopathology ,General surgery ,Medicine ,business ,Pathology and Forensic Medicine - Published
- 2014
48. Potential Diagnostic Markers for Early Lung Adenocarcinoma based on FNA Samples - XIAP, AQP4 and PLZF
- Author
-
Maoxin Wu, David Burstein, Mary Beth Beasley, and Sofia Kazi
- Subjects
Oncology ,medicine.medical_specialty ,Lung ,medicine.anatomical_structure ,business.industry ,Internal medicine ,Medicine ,Adenocarcinoma ,Diagnostic marker ,business ,medicine.disease ,Pathology and Forensic Medicine ,XIAP - Published
- 2014
49. Primary CNS plasmablastic lymphoma: report of a case with CSF cytology, flow cytometry, radiology, histological correlation, and review of the literature
- Author
-
Mary Fowkes, Paula A. Rodriguez Urrego, Hua Chen, Arnold H. Szporn, Maoxin Wu, Mark Smethurst, James A. Strauchen, and Bruce A. Peterson
- Subjects
Male ,Pathology ,medicine.medical_specialty ,Histology ,Population ,Pathology and Forensic Medicine ,Cerebrospinal fluid ,Cytology ,medicine ,Humans ,education ,education.field_of_study ,business.industry ,Brain Neoplasms ,General Medicine ,Middle Aged ,medicine.disease ,Flow Cytometry ,Magnetic Resonance Imaging ,Lymphoma ,Cell Nucleus Size ,Monoclonal ,Neoplastic cell ,Lymphoma, Large B-Cell, Diffuse ,business ,Diffuse large B-cell lymphoma ,Plasmablastic lymphoma - Abstract
Plasmablastic lymphoma (PBL) is a rare subtype of diffuse large B cell lymphoma and commonly presents as an oral mass in HIV patients. Extraoral PBL has been reported, including one case of primary central nervous system PBL (PCNSPBL). The cytological features of PBL have been described, including cerebrospinal fluid (CSF) cytology findings for secondary CNS involvement by PBL. The etiology of PCNSPBL is still unknown. We report here the CSF cytology of a PCNSPBL, which shows a hypercellular specimen composed of markedly atypical, singly dispersed plasmacytoid cells with frequent abnormal mitoses and binucleation. The neoplastic cells are positive for CD138. Flow cytometry of the CSF specimen demonstrates a monoclonal neoplastic cell population, which is CD138 positive, kappa light chain positive, lambda light chain negative, and CD19 negative. Molecular analysis and immunohistochemical stains on a tissue biopsy confirmed the diagnosis and reveal concurrent infections with Epstein-Barr virus and human polyomavirus JC virus. Clinical and radiological correlations are reported, and the literature is reviewed. To the best of our knowledge, this is the first case report for CSF cytology of a PCNSPBL, demonstrating the utility of the cytological examination in the triage and diagnosis of this disease. Because of its dismal prognosis, it is critical for cytopathologists to be aware of the entity and recognize the neoplastic cells in CSF specimen. This report also emphasizes the importance of clinical and radiological correlation in the diagnosis of this lethal disease.
- Published
- 2010
50. Papanicolaou stain may not be necessary in majority of head and neck fine-needle aspirations: evidence from a correlation study between Diff-Quik-based onsite diagnosis and final diagnosis in 287 head and neck fine-needle aspirations
- Author
-
Muhammad Idrees, Maoxin Wu, Eric M. Genden, David E. Burstein, and Zhengbin Zhang M.D.
- Subjects
medicine.medical_specialty ,Histology ,Staining and Labeling ,business.industry ,Cytodiagnosis ,Biopsy, Fine-Needle ,Papanicolaou stain ,Diff-Quik ,General Medicine ,Pathology and Forensic Medicine ,Patient management ,Surgery ,Head and Neck Neoplasms ,medicine ,Humans ,Basal cell ,Radiology ,business ,Head and neck ,Cell block - Abstract
Fine-needle aspiration (FNA) is a useful tool for immediate assessment of palpable lesions, especially in the head and neck region. The objective of this study is to evaluate the degree of correlation between Diff–Quik-based onsite diagnosis (OD) and final diagnosis (FD) and further improve the efficiency of FNA practice. Two hundred and eighty-seven cytopathologist-performed FNAs from the head and neck region were evaluated. Number of passes, number and type of slides and correlation (agreement, modified final diagnosis and disagreement) between OD and FD were evaluated. Among 287 FNAs, the average number of passes per FNA case was 2 (range, 1–5&.rpar;). The mean number of slides reviewed per case was 5 including 2 Diff–Quik (D–Q)-stained slides, 2 Papanicolaou (Pap)-stained slides, and 1 cell block (CB)/1 cytospin (Cy). 247 of 287 (86%) cases showed agreement between OD and FD. FD on 36 out of 287 cases (12.5%) was slightly modified or refined after reviewing additional slides. A major diagnostic discrepancy was noted in four cases (1.5%), three of which were classified as squamous cell carcinoma on final diagnosis, and confirmed on surgical follow-up. Accurate diagnosis can be achieved in the majority (86%) of head and neck FNAs based on immediate examination of D–Q stained slides alone. In a small number of cases (12.5%), reviewing additional slides may refine the final diagnosis. In rare cases, especially cystic squamous lesions, Pap-stained slides appeared to be helpful. It is plausible to use D–Q-stained slides alone with most head and neck FNAs in order to provide more cost effective and efficient triaging and patient management. Diagn. Cytopathol. 2010;38:846–853. © 2010 Wiley-Liss, Inc..
- Published
- 2010
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