58 results on '"Gargi Kapatia"'
Search Results
2. Microscopic Papillary Thyroid Carcinoma: What It Taught Us?
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Gargi Kapatia, Mayur Parkhi, Amber Parwaiz, Archit Goel, and Pranab Dey
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Cytology ,QH573-671 - Published
- 2024
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3. Case of Undifferentiated Carcinoma with Osteoclast-like Giant Cells Associated with a Mucinous Cystic Neoplasm of the Pancreas: A Diagnostic Conundrum
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Gargi Kapatia, Akriti Jindal, Gourav Kaushal, Ankita Soni, and Manjit Kaur Rana
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histopathology ,malignant neoplasm ,pancreas ,Medicine - Abstract
Undifferentiated carcinoma with osteoclast-like giant cells (UC-OGC) is a rare histological subtype of pancreatic ductal adenocarcinoma according to the World Health Organization classification of digestive system tumors. This subtype is exceptionally uncommon, accounting for less than 1% of pancreatic malignant tumors. This paper presents a rare case of a 62-year-old female patient diagnosed with UC-OGC. The patient initially presented with symptoms, including epigastric pain and the presence of an abdominal mass, which led to further investigation and the eventual diagnosis of this unusual and challenging form of pancreatic cancer.
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- 2024
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4. Asymptomatic Nodule Over the Scalp
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Pratika Goyal, Shivani Bansal, and Gargi Kapatia
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Dermatology ,RL1-803 - Published
- 2024
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5. Ocular metastasis from renal malignancies – A comprehensive review
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Akriti Jindal, Gargi Kapatia, and Gaurav Gupta
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eye metastasis ,metastatic kidney tumor ,renal cell carcinoma ,Ophthalmology ,RE1-994 - Abstract
The most common cause of intraocular mass is metastasis from other tumors. Renal malignancies, though rare, have a substantial number of cases with ocular metastasis, few of which were misdiagnosed. Many a times renal malignancies present with ocular manifestations before the primary diagnosis. Here in this article, we comprehensively reviewed 106 cases of ocular metastasis from renal malignancies published till date to the best of our knowledge. The eye is a rare site for distant metastasis because of the lack of a lymphatic system. The most common ocular structures to get involved in distant metastasis are the uveal tract, i.e., choroid, iris, and ciliary body. The most common renal tumor which metastasizes to eyes is renal cell carcinoma (RCC). RCC accounts for less than 2% of all ophthalmic metastases. Out of total 106 cases, the type of renal malignancy was known in 95 cases only, of which 92 had RCC, 1 Wilm's tumor, 1 rhabdoid tumor, and 1 medullary carcinoma. The age ranged widely from 2 weeks old to 81 years old. The male to female ratio was 3.4:1. In total, 67.4% of cases had a previous history of RCC, while the rest 32.6% primarily presented with ophthalmic manifestations first. Treatment modalities included enucleation of the eye, debulking surgery followed by radiotherapy and/or chemotherapy and/or immunotherapy.
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- 2023
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6. Bisalbuminemia: A Pathologist’s Insight of an Uncommon Phenomenon
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Gargi Kapatia, Monika Wadhwa, Pankaj Malhotra, Gaurav Prakash, and Ritu Aggarwal
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gel electrophoresis ,albumin ,serum protein electrophoresis ,Medicine - Abstract
Background The incidence of a bifid electrophoretic pattern in the albumin region on serum protein electrophoresis is an infrequent phenomenon. The availability of literature from India is scarce and is limited to case reports. Objective The aim of the study is to analyze the frequency of bisalbuminemia in an Indian referral facility. The study delved into their clinical associations. Material and Methods The retrospective case records of the patient from the departmental database were scrutinized. The study subjects were for an 8-year study period. Results There were about 39,900 serum electrophoresis performed in an 8-year study period. A total of 40 cases of bisalbuminemia were detected. The incidence in our cohort was 0.01%. Conclusion Bisalbuminemia, an overtly benign condition, is infrequent in Indian population although not rare. It is associated with several clinical disorders; however, the association seems to be plausibly coincidental.
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- 2021
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7. Fine needle aspiration cytology of maxillary ameloblastoma: A cytological eye-opener
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Akriti Jindal, Gargi Kapatia, Manjit K Rana, Nikhil Rajan, and Utkarshni Khera
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Cytology ,QH573-671 - Published
- 2023
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8. Fibrous hamartoma of infancy with sarcomatous transformation: an unusual morphology
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Gargi Kapatia, Debajyoti Chatterjee, Kirti Gupta, and Amita Trehan
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Hamartoma ,Neoplasms, Fibrous Tissue ,Neoplasms, Connective Tissue ,Neoplasms, Connective and Soft Tissue ,Medicine ,Internal medicine ,RC31-1245 - Abstract
Background: Fibrous hamartoma of infancy (FHI) is a rare soft tissue lesion arising as a subcutaneous mass involving the axilla, trunk, and upper arm in infants and children
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- 2022
9. Multicystic encephalomalacia
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Manoj Gopal Madakshira, Kirti Gupta, Preithy Uthamalingam, Gargi Kapatia, and Shiv Sajan Saini
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Brain ,Encephalomalacia ,Hypoxia ,Gliosis ,Medicine ,Internal medicine ,RC31-1245 - Abstract
Multicystic encephalomalacia is varying sized cystic lesions in the brain encountered in developing fetuses or infants. These cysts start at the periventricular area and may extend onto the cortex. The cause of the formation of these cystic lesions is secondary to an ischemic or hypoxic insult, which leads to liquefactive necrosis and subsequent formation of gliotic cyst walls having an admixture of microglia. We discuss four autopsy cases that had multicystic encephalomalacia to highlight the scenarios in which these lesions are encountered.
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- 2021
10. Multisystemic Pediatric Langerhans cell histiocytosis: a comprehensive clinico-pathological and BRAF V600E mutation study at autopsy
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Gargi Kapatia, Prateek Bhatia, Minu Singh, Richa Jain, Deepak Bansal, and Kirti Gupta
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Autopsy ,Histiocytosis, Langerhans-Cell ,Mitogen-Activated Protein Kinase Kinases ,Proto-Oncogene Proteins B-raf ,Medicine ,Internal medicine ,RC31-1245 - Abstract
Langerhans cell histiocytosis (LCH), a disorder of antigen-presenting cells, is the commonest disorder of the mononuclear phagocytic system. Diagnosis is always challenging due to heterogeneous clinical presentation. However, with the evolution and better understanding of its biology, many of these children are being diagnosed early and offered appropriate therapy. Despite these advances, in developing countries, an early diagnosis is still challenging due to resource constraints for specialized tests. As a result, many patients succumb to their disease. Autopsy data on LCH is notably lacking in the literature. We sought to analyze the clinical (including mutational) and morphologic features at autopsy in six proven cases of LCH. This study includes a detailed clinico-pathological and mutational analysis of 6 proven cases of LCH. Presence of BRAF V600E mutation was assessed by both Real Time PCR and Sanger sequencing. A varied spectrum of organ involvement was noted with some rare and novel morphological findings, like nodular bronchiolocentric infiltration of LCH cells, lymphovascular emboli of LCH cells, and paucity of eosinophils within the infiltrate; these features have not been described earlier. Surprisingly, all cases were negative for BRAF V600E mutation on both RQ-PCR and Sanger sequencing. The present study is perhaps the first autopsy series on LCH. This extensive autopsy analysis represents a correlation of pathological features with clinical symptoms which provides clues for a timely diagnosis and appropriate therapeutic intervention. Also, our findings hint at the low frequency of BRAF V600E mutation in our LCH patients.
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- 2021
11. Mismatch Repair Deficiency in Adult Granulosa Cell Tumors: an Immunohistochemistry-based Preliminary Study
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Parikshaa, Gupta, Gargi, Kapatia, Nalini, Gupta, Nagarjun, Ballari, Bhavana, Rai, Vanita, Suri, and Arvind, Rajwanshi
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Adult ,Histology ,Brain Neoplasms ,DNA Mismatch Repair ,Immunohistochemistry ,Pathology and Forensic Medicine ,DNA-Binding Proteins ,Medical Laboratory Technology ,MutS Homolog 2 Protein ,Neoplastic Syndromes, Hereditary ,Humans ,Female ,Microsatellite Instability ,Colorectal Neoplasms ,MutL Protein Homolog 1 ,Granulosa Cell Tumor ,Mismatch Repair Endonuclease PMS2 ,Retrospective Studies - Abstract
Adult granulosa cell tumors (AGCTs) are rare ovarian malignant neoplasms; their etiopathogenetic mechanisms remain largely unelucidated. Lately, defects in mismatch repair (MMR) have been implicated in the pathogenesis of AGCTs. Demonstration of MMR deficiency in these tumors can help identify patients potentially eligible for immune checkpoint inhibition therapy. The present study was done to explore the role of MMR deficiency in the etiopathogenesis of AGCTs.This was a retrospective study conducted on histopathologically confirmed AGCT cases. MMR protein expression was evaluated by immunohistochemistry (IHC) on tissue microarrays using an antibody panel of MSH2, MSH6, MLH1, and PMS2.Of a total of 40 ovarian AGCTs evaluated for MMR deficiency, none demonstrated loss of expression of any of the 4 MMR proteins.The results of our preliminary study show that there is no association between MMR deficiency with AGCT. Nevertheless, larger multicenter studies are needed to confirm or refute this observation.
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- 2022
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12. Cytological and histopathological features of recurrent calcifying aponeurotic fibroma of neck in an adolescent male‐rare presentation of a rare tumour
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Utkarshni Khera, Gargi Kapatia, Vikasdeep Gupta, and Manjit Kaur
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Histology ,General Medicine ,Pathology and Forensic Medicine - Published
- 2023
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13. Bisalbuminemia: A Pathologist’s Insight of an Uncommon Phenomenon
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Pankaj Malhotra, Gaurav Prakash, Gargi Kapatia, Monika Wadhwa, and Ritu Aggarwal
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serum protein electrophoresis ,Pediatrics ,medicine.medical_specialty ,Benign condition ,Referral ,medicine.diagnostic_test ,business.industry ,Incidence (epidemiology) ,Indian population ,medicine.disease ,gel electrophoresis ,Case records ,Serum protein electrophoresis ,Cohort ,medicine ,Medicine ,Original Article ,business ,Bisalbuminemia ,albumin - Abstract
Background The incidence of a bifid electrophoretic pattern in the albumin region on serum protein electrophoresis is an infrequent phenomenon. The availability of literature from India is scarce and is limited to case reports. Objective The aim of the study is to analyze the frequency of bisalbuminemia in an Indian referral facility. The study delved into their clinical associations. Material and Methods The retrospective case records of the patient from the departmental database were scrutinized. The study subjects were for an 8-year study period. Results There were about 39,900 serum electrophoresis performed in an 8-year study period. A total of 40 cases of bisalbuminemia were detected. The incidence in our cohort was 0.01%. Conclusion Bisalbuminemia, an overtly benign condition, is infrequent in Indian population although not rare. It is associated with several clinical disorders; however, the association seems to be plausibly coincidental.
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- 2021
- Full Text
- View/download PDF
14. Incidental detection of microsporidium spores on Ziehl–Neelson staining done on cervical pap smear
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Utkarshni Khera, Gargi Kapatia, and Manjit Kaur Rana
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Pathology and Forensic Medicine - Published
- 2023
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15. Bilateral chancre of the tongue: An unusual presentation of primary syphilis
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Sushma Singh, Kavita Poonia, Shivani Bansal, and Gargi Kapatia
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Infectious Diseases ,Public Health, Environmental and Occupational Health ,Pharmacology (medical) ,Dermatology - Abstract
Syphilis is a sexually transmitted infectious disease caused by the spirochete bacterium Treponema pallidum. A characteristic lesion of primary syphilis is chancre. It can develop over genital or extra genital sites, depending on the site of contact with the infectious agent. Cases of oral syphilis have been on the rise in the previous two decades, probably because of the involvement of the oral cavity in sexual practices. We here report an unusual case of primary syphilis who presented with a painless indurated oral ulcer over the lateral borders of the tongue.
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- 2023
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16. Metastatic germ cell tumor in ascitic effusion cytology‐ Is it that uncommon?
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Akriti Jindal, Gargi Kapatia, and Manjit Kaur Rana
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Histology ,Cytodiagnosis ,Cytological Techniques ,Humans ,Exudates and Transudates ,General Medicine ,Neoplasms, Germ Cell and Embryonal ,Body Fluids ,Pathology and Forensic Medicine - Published
- 2022
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17. Myeloid sarcoma: 'A cytological surprise'
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Akriti Jindal, Gargi Kapatia, Manjit Kaur, Utkarshni Khera, and Jaspreet Singh Shergill
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Histology ,Humans ,Cell Biology ,General Medicine ,Sarcoma, Myeloid ,Letter to the Editor ,Pathology and Forensic Medicine - Published
- 2022
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18. The cytological diagnosis of Pneumocystis jiroveci pneumonia in bronchoalveolar lavage
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Gargi Kapatia, Anjan Saikia, Dibyanshu Sekhar Mohapatra, Parikshaa Gupta, Manish Rohilla, Nalini Gupta, Radhika Srinivasan, Arvind Rajwanshi, and Pranab Dey
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Pathology and Forensic Medicine - Abstract
Objectives: Immunosuppressed individuals are more prone for opportunistic infections. Pneumocystis jiroveci pneumonia (PJP), previously known as Pneumocystis carinii pneumonia (PCP), is the most common opportunistic infection affecting people living with HIV. As PJP can cause life threatening serious infection to a patient, treatment should not be delayed for these cases. To study clinico-cytomorphological spectrum of PJP. Material and Methods: We analysed the clinical and detailed cytological features of 15 patients with PJP who were diagnosed on examination of bronchoalveolar lavage (BAL) fluid. Results: The mean age of the patients was 38.4 years (range 13 – 61 years). A total of seven patients were HIV positive; five patients were post renal transplant, and one patient was a known case of acute leukaemia on immunosuppression. Presence of foamy alveolar casts (FACs) was the distinctive feature and was noted in 14 out of 15 cases. We detected 14 out of 15 cases accurately in BAL fluid cytology. Conclusion: BAL cytology is one of the important modes of investigations which can detect PJP infection. The history of fever, cough, immunosuppression, bilateral haziness in the radiography of lung and the characteristic alveolar cast indicate the possibility of PJP infection. Cytology can provide early diagnosis and can reduce the mortality of immunocompromised patients.
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- 2023
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19. Fine needle aspiration cytology of maxillary ameloblastoma: A cytological eye-opener
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Gargi Kapatia, Akriti Jindal, ManjitK Rana, Nikhil Rajan, and Utkarshni Khera
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Histology ,Pathology and Forensic Medicine - Published
- 2023
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20. Expression of Proteinase-activated Receptor 2 (PAR2) as a Correlate of Concern in Triple-negative Breast Cancer (TNBC)
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Gargi Kapatia, Subhpreet Kaur, Sandeep Kumar, Ishita Laroiya, Gurpreet Singh, Maryada Sharma, Amanjit Bal, and Manni Luthra-Guptasarma
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Adult ,Histology ,Receptor, ErbB-2 ,Triple Negative Breast Neoplasms ,Pathology and Forensic Medicine ,Medical Laboratory Technology ,Receptors, Estrogen ,Biomarkers, Tumor ,Humans ,Receptor, PAR-2 ,Female ,Receptors, Progesterone ,Mastectomy ,Retrospective Studies - Abstract
Triple-negative breast cancer (TNBC), a highly aggressive cancer with poor outcome and lacking specific diagnostic, prognostic, or targeted therapeutic strategies, constitutes roughly 20% of all breast cancer cases. TNBC cells lack receptors for estrogen, progesterone, and human epidermal growth factor. The effort continues to find a suitable correlate that could serve as a TNBC biomarker, or as therapeutic target, or both.A retrospective study was performed with 88 TNBC and 74 non-TNBC patients who had undergone mastectomy/lumpectomy with axillary clearance for carcinoma breast. Immunohistochemical staining was carried out for levels of proteinase-activated receptor 2 (PAR2), encoded by F2RL1 gene, and staining scores were calculated, based on intensity and percentage positivity.PAR2 levels were markedly upregulated in TNBC patients, compared with patients with other breast cancer subtypes. Amongst different non-TNBC subtypes, higher expression was noted in luminal B (88.8%) and HER2+ (100%), compared with luminal A (52.5%). PAR2 levels were significantly high in TNBC patients with age more than 40 years than corresponding patients of non-TNBC group (P=0.0017). Furthermore, there was a statistically significant increase in levels of PAR2 expression in lymph node negative (P=0.0096) and early stage (P=0.005) of TNBC versus non-TNBC patients. PAR2 staining of ductal carcinoma in situ and invasive ductal carcinoma revealed lower expression in invasive component.Our data suggest that PAR2 levels constitute a correlate of concern for TNBC, tying in with a recent report that higher levels of F2RL1 gene expression correlate with poorer disease-free, as well as overall survival in TNBCs.
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- 2021
21. Fine needle aspiration cytology of primary and metastatic gastrointestinal stromal tumour
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Manish Rohilla, Gargi Kapatia, Parikshaa Gupta, Radhika Srinivasan, Pranab Dey, Arvind Rajwanshi, Ojas Gupta, Uma Nahar Saikia, and Nalini Gupta
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Adult ,Male ,Pathology ,medicine.medical_specialty ,Histology ,Adolescent ,Gastrointestinal Stromal Tumors ,Cytodiagnosis ,Biopsy, Fine-Needle ,Immunocytochemistry ,Rectum ,030209 endocrinology & metabolism ,Pathology and Forensic Medicine ,Metastasis ,Diagnosis, Differential ,Young Adult ,03 medical and health sciences ,0302 clinical medicine ,Biomarkers, Tumor ,medicine ,Humans ,Neoplasm Metastasis ,neoplasms ,Aged ,Aged, 80 and over ,GiST ,business.industry ,Stomach ,Mediastinum ,Neoplasms, Second Primary ,General Medicine ,Middle Aged ,medicine.disease ,digestive system diseases ,medicine.anatomical_structure ,030220 oncology & carcinogenesis ,Duodenum ,Female ,business ,Epithelioid cell - Abstract
Aim To explore the cytological spectrum of the gastrointestinal stromal tumour (GIST) including its metastatic sites. Material and methods A total of 42 patients (45 sites) diagnosed with GIST or its metastases on fine needle aspiration cytology were studied over a period of 5 years. May-Grunwald Giemsa- and haematoxylin and eosin-stained smears were reviewed and analysed for the cytomorphological spectrum of GIST. Results Primary GIST alone was seen in 24 cases, E-GIST in eight cases and metastasis in 11 cases (one patient showing metastasis at two distinct sites), whereas concurrent primary and metastatic lesions were noted in two cases. Amongst primary sites, the most commonly affected location was stomach (n = 22), followed by ileum (n = 2), duodenum (n = 1) and rectum (n = 1). Extra-GIST was seen in retroperitoneum and pelvis (n = 3 each), omentum and mediastinum (n = 1 each). Fine needle aspiration cytology was done from 11 metastatic sites of GIST which included liver, gall bladder fossa, chest wall, and thigh. The classic spindle cell arrangement was the predominant cytological pattern. About 8.8% cases showed predominant epithelioid cell morphology and 15.5% cases had a mixed cytomorphology comprising of both spindle cell and epithelioid cell patterns. Nuclear pseudoinclusions, perinuclear vacuoles and multinucleation were seen in four cases. Immunocytochemistry on cell-block sections for confirmation was performed in 18 cases and all these cases showed strong c-KIT positivity. Conclusion In this largest case series of cytomorphological diagnosis of GIST, we describe the cytomorphology and immunocytochemistry of primary and metastatic GIST. GISTs with predominant epithelioid cell morphology may pose a diagnostic dilemma therefore in all suspected cases of GIST, immunocytochemistry for c-KIT and/or DOG1 should be employed on cell-block preparations to confirm the diagnosis of GIST.
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- 2020
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22. Mesenteric panniculitis and rhabdomyolysis complicated by invasive fungal co-infection in a case of systemic lupus erythematosus: An autopsy report
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Gargi Kapatia, Kirti Gupta, Manish Rathi, Manphool Singhal, Suvradeep Mitra, and Navneet Sharma
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Antifungal ,Mesenteric Panniculitis ,medicine.medical_specialty ,medicine.drug_class ,business.industry ,High index ,Autopsy ,Case Report ,medicine.disease ,lcsh:Diseases of the genitourinary system. Urology ,lcsh:RC870-923 ,Dermatology ,systemic lupus erythematosus ,Nephrology ,immune system diseases ,medicine ,Autopsy report ,rhabdomyolysis ,In patient ,business ,skin and connective tissue diseases ,Rhabdomyolysis ,mesenteric panniculitis ,Co infection - Abstract
Invasive fungal infections are a significant cause of morbidity and mortality in patients systemic lupus erythematosus. The case illustrates the autopsy findings in a patient with systemic lupus erythematosus complicated by multiple fungal infections. Rare, uncommon manifestations of SLE such as mesenteric panniculitis and rhabdomyolysis were also present. High index of suspicion with timely intervention with aggressive antifungal was life-saving.
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- 2020
23. Clinical and Morphological Spectrum of Histoplasmosis on Cytology Along with the Review of Literature
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Radhika Srinivasan, Arvind Rajwanshi, Ashmita Saha, Gargi Kapatia, Parikshaa Gupta, Pranab Dey, Nalini Gupta, and Manish Rohilla
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Adult ,Male ,Pathology ,medicine.medical_specialty ,Histology ,Adolescent ,Cytodiagnosis ,Biopsy, Fine-Needle ,Giant Cells ,Histoplasmosis ,Pathology and Forensic Medicine ,Diagnosis, Differential ,Young Adult ,03 medical and health sciences ,0302 clinical medicine ,Histoplasma ,Cytology ,medicine ,Humans ,Child ,Lymph node ,Histiocyte ,Aged ,Aged, 80 and over ,Granuloma ,Lung ,biology ,medicine.diagnostic_test ,business.industry ,General Medicine ,Middle Aged ,030224 pathology ,biology.organism_classification ,medicine.disease ,medicine.anatomical_structure ,Fine-needle aspiration ,Giant cell ,030220 oncology & carcinogenesis ,Female ,Lymph Nodes ,business - Abstract
Objective: The aim of the study was to study the clinical and morphological spectrum of histoplasmosis diagnosed by fine needle aspiration cytology (FNAC). Study Design: A total of 17 patients diagnosed with histoplasmosis on FNAC were studied over a period of 5 years. The cytology smears were studied and analysed for the cytomorphological spectrum of histoplasmosis. Results: Among the 17 patients studied, the mean age was 51.3 years (range 6–84 years). Male-to-female ratio was 3.25:1 with 4 females and 13 males. The frequent sites of involvement were the lung (5), lymph node (4), adrenal gland (4), and skin (4). The most common cytological patterns were histiocytic collection, followed by granulomas and multinucleated giant cells. Necrosis was noted in only 4 cases. Conclusion: Fine needle aspiration is a highly accurate, rapid, and cheap technique for the diagnosis of histoplasmosis due to its distinct morphological features.
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- 2020
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24. Artificial neural network model to distinguish pleomorphic adenoma from adenoid cystic carcinoma on fine needle aspiration cytology
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Gargi Kapatia, Uma Nahar Saikia, and Pranab Dey
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Histology ,Adenoid cystic carcinoma ,Cytodiagnosis ,Biopsy, Fine-Needle ,Adenoma, Pleomorphic ,030209 endocrinology & metabolism ,Pathology and Forensic Medicine ,Diagnosis, Differential ,Pleomorphic adenoma ,03 medical and health sciences ,0302 clinical medicine ,Fine needle aspiration cytology ,Humans ,Medicine ,Artificial neural network ,Receiver operating characteristic ,business.industry ,Confusion matrix ,Pattern recognition ,General Medicine ,medicine.disease ,Carcinoma, Adenoid Cystic ,Backpropagation ,030220 oncology & carcinogenesis ,Test set ,Neural Networks, Computer ,Artificial intelligence ,business ,Software - Abstract
Background To differentiate pleomorphic adenoma (PA) and adenoid cystic carcinoma (ACC) on fine needle aspiration cytology (FNAC) is often challenging to cytologists. Aims In the present study, we tried to make an artificial neural network (ANN) model from the FNAC smears to differentiate PA from ACC. Methods The detailed cytomorphological features were analysed on the FNAC of histopathology proven cases of PA (n = 35) and ACC (n = 33) and enumerated semi-quantitatively by two independent observers. These data were used to make an ANN model to distinguish PA from ACC on FNAC material. We used neuro-intelligence software to build the ANN model. The network architecture was 10-2-1. The heuristic search engine was applied to have this model. We used backpropagation neural network to teach ANN. At least 500 iterations were done to train the model. The efficacy of this ANN model was assessed with the help of the confusion matrix and receiver operating characteristic curve. Result The data were separated automatically by the software as a training set (n = 48), validation set (n = 10) and test set (n = 10). The ANN model was able to differentiate every case (10/10) of PA and ACC in the final test set. The area under the receiver operating characteristic curve was 1. Conclusion The currently built ANN model is competent to identify PA and ACC cases on FNAC. Additional parameters and new cases can be incorporated into this open-ended ANN model to make it more robust.
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- 2019
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25. Intraoperative consultation in the diagnosis of posterior fossa brain tumors following the 2016 WHO update
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Kirti Gupta, Vikram Singh, Chirag Kamal Ahuja, Gargi Kapatia, and Pravin Salunke
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Adult ,Male ,medicine.medical_specialty ,Histology ,Adolescent ,Intraoperative consultation ,Posterior fossa ,H&E stain ,030209 endocrinology & metabolism ,Astrocytoma ,World Health Organization ,Pathology and Forensic Medicine ,03 medical and health sciences ,Intraoperative Period ,0302 clinical medicine ,medicine ,Humans ,Tumor type ,Cerebellar Neoplasms ,Child ,Rapid On-site Evaluation ,Retrospective Studies ,Frozen section procedure ,business.industry ,Retrospective cohort study ,General Medicine ,Middle Aged ,Ependymoma ,030220 oncology & carcinogenesis ,Child, Preschool ,Female ,Radiology ,Neurosurgery ,Who classification ,business ,Medulloblastoma - Abstract
Intraoperative crush/squash smear or frozen section consultation is routinely performed at several centers and offers rapid onsite assessment of tumor type and provides invaluable information to the neurosurgeons. The WHO classification of central nervous system neoplasms underwent a paradigm shift in 2016 with the incorporation of molecular data with the morphological features, such that several new entities came to be distinctly defined. With this paper, we present our experience at intraoperative consultation of brain tumors arising in posterior fossa and aim to apprise the pathologists with the spectrum of cytomorphologic appearances that can occur during such consultation and highlight the diagnostic dilemmas and pitfalls encountered in this setting.This is a retrospective observational study illustrating the salient morphological features of commonly encountered brain tumors arising in the posterior fossa (prototype example of each type) reported at our institute over a period of seven years. Both squash smears and rapid snap frozen section were prepared and stained with Toluidine blue and rapid hematoxylin and eosin (HE) stains.While the majority of tumors at this location comprise of pilocytic astrocytoma, ependymoma, and medulloblastoma, some rare examples may also arise; common differentials must be considered and prudently excluded to arrive at the diagnosis which is crucial in guiding the neurosurgeon. Both squash smears and rapid frozen section should be prepared and complement each other for rapid on-site evaluation.
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- 2021
26. Multicystic encephalomalacia: An autopsy report of 4 cases
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Gargi Kapatia, Preithy Uthamalingam, Kirti Gupta, Shiv Sajan Saini, and Manoj Gopal Madakshira
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Pathology ,medicine.medical_specialty ,Autopsy Case Report ,Autopsy ,Pathology and Forensic Medicine ,03 medical and health sciences ,Cystic lesion ,0302 clinical medicine ,Liquefactive necrosis ,Encephalomalacia ,Internal Medicine ,medicine ,Cyst ,030216 legal & forensic medicine ,Gliosis ,Hypoxia ,business.industry ,Brain ,medicine.disease ,Multicystic encephalomalacia ,Autopsy report ,medicine.symptom ,business ,030217 neurology & neurosurgery - Abstract
Multicystic encephalomalacia is varying sized cystic lesions in the brain encountered in developing fetuses or infants. These cysts start at the periventricular area and may extend onto the cortex. The cause of the formation of these cystic lesions is secondary to an ischemic or hypoxic insult, which leads to liquefactive necrosis and subsequent formation of gliotic cyst walls having an admixture of microglia. We discuss four autopsy cases that had multicystic encephalomalacia to highlight the scenarios in which these lesions are encountered.
- Published
- 2020
27. Small Cell Carcinoma of the Ovary: Clinicopathologic and Immunohistochemical Analysis of 7 New Cases of a Rare Malignancy
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Gargi Kapatia, Manish Rohilla, Nalini Gupta, Parikshaa Gupta, Vanita Suri, Ankita Gupta, Pranab Dey, Bhavana Rai, Radhika Srinivasan, and Arvind Rajwanshi
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0301 basic medicine ,Adult ,Pathology ,medicine.medical_specialty ,Adolescent ,Ovariectomy ,Ovary ,Malignancy ,Small-cell carcinoma ,Disease-Free Survival ,Pathology and Forensic Medicine ,03 medical and health sciences ,Ovarian tumor ,Young Adult ,0302 clinical medicine ,medicine ,Biomarkers, Tumor ,Humans ,Basal cell ,Carcinoma, Small Cell ,Child ,Aged ,Retrospective Studies ,Ovarian Neoplasms ,business.industry ,Middle Aged ,medicine.disease ,Prognosis ,Immunohistochemistry ,030104 developmental biology ,medicine.anatomical_structure ,Chemotherapy, Adjuvant ,030220 oncology & carcinogenesis ,Disease Progression ,Surgery ,Histopathology ,Female ,Radiotherapy, Adjuvant ,Anatomy ,Neoplasm Recurrence, Local ,business ,Follow-Up Studies - Abstract
Background Small cell carcinoma of ovary (SCCO) is extremely rare. Two types of SCCO are recognized, the pulmonary type (SCCOPT) and the hypercalcemic type (SCCOHT). Establishing an accurate diagnosis is challenging, owing to its rarity and paucity of data describing the distinctive histopathologic and immunohistochemical (IHC) features. Methods This was a retrospective study conducted over a period of 4 years. All cases reported as SCCO on histopathology were retrieved. All the available clinical, histopathological, and IHC features were studied in detail. Results A total of 7 cases of SCCO were diagnosed during the study period. There were 4 cases of SCCOPT and 3 cases of SCCOHT and with mean age of 57.25 and 22 years, respectively. All the cases presented as stage IV disease. Among the SCCOPT cases, 3 showed bilateral involvement with 1 showing concurrent uterine endometrioid adenocarcinoma. Microscopy revealed small hyperchromatic cells with brisk mitosis and multifocal necrosis. On IHC, these were consistently positive for chromogranin, CD56, and synaptophysin. All the SCCOHT cases showed unilateral involvement. Microscopically, in addition to small hyperchromatic cells, larger “rhabdoid” tumor cells were also seen. On IHC, chromogranin was negative, with positivity for vimentin and epithelial membrane antigen. The expression of SMARCA4/BRG1 was lost while SMARCB1/INI1 was retained in all cases. All of these patients developed recurrence and died due to disease progression despite treatment. Conclusions SCCO is an extremely infrequent ovarian malignancy with poor prognosis. Knowledge about its characteristic features is important for accurate tissue diagnosis and appropriate management.
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- 2020
28. Myeloid Neoplasm with t(8;22)(p11;q11): A Mimicker of Chronic Myeloid Leukaemia in Blast Crisis
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Shano Naseem, Mayur Parihar, Gargi Kapatia, Arun Sasikumar Nair Remani, and Sreejesh Sreedharanunni
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medicine.medical_specialty ,Blast Crisis ,Hematology ,business.industry ,Internal medicine ,Immunology ,Correspondence ,Medicine ,business ,Chronic myeloid leukaemia ,Human genetics ,Myeloid Neoplasm - Published
- 2020
29. Clinical and morphological spectrum of cutaneous metastases on cytology: A study of 225 cases
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Gargi Kapatia, Manish Rohilla, Radhika Srinivasan, Parikshaa Gupta, Arvind Rajwanshi, Nalini Gupta, Pranab Dey, and Saumya Sahu
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Adult ,Male ,medicine.medical_specialty ,Histology ,Skin Neoplasms ,Cytodiagnosis ,Biopsy, Fine-Needle ,Cytological Techniques ,030209 endocrinology & metabolism ,Adenocarcinoma ,Giemsa stain ,Pathology and Forensic Medicine ,Metastasis ,Abdominal wall ,03 medical and health sciences ,0302 clinical medicine ,Female preponderance ,Cytology ,medicine ,Humans ,Neoplasm Metastasis ,Skin ,business.industry ,Incidence (epidemiology) ,General Medicine ,Middle Aged ,medicine.disease ,Immunohistochemistry ,medicine.anatomical_structure ,030220 oncology & carcinogenesis ,Female ,Radiology ,business - Abstract
INTRODUCTION Any type of cutaneous metastasis indicates dismal outcome of the disease. Skin is an unusual location for metastatic deposits from any tumour and has an incidence of about 0.8%-5%. Fine needle aspiration cytology (FNAC) helps in the rapid diagnosis of metastasis with minimum pain. AIM To study the cytomorphological spectrum of cutaneous metastasis on FNAC. MATERIAL AND METHODS A total of 225 patients with diagnosis of cutaneous metastasis on cytology were analysed. May-Grunwald Giemsa and haematoxylin-eosin-stained smears were studied and examined for the cytomorphological spectrum of cutaneous metastasis. Cell block was prepared in a few cases. In a subset of cases, immunohistochemistry was done to pinpoint the primary. RESULTS Amongst the 225 patients studied, the mean age was 53.9 years. There was female preponderance with 125 females and 100 males. The commonest site was abdominal wall (n = 89) followed by chest wall (n = 60). The most common type of metastasising tumour was adenocarcinoma. CONCLUSION Clinicians and pathologists must be aware of the clinico-morphological spectrum of cutaneous metastasis for instant diagnosis followed by prompt management.
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- 2020
30. Pancreatic space-occupying lesion: 'Keep me in your mind'
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Arvind Rajwanshi and Gargi Kapatia
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Adult ,medicine.medical_specialty ,Abdominal pain ,Histology ,030209 endocrinology & metabolism ,Sarcoma, Ewing ,Stain ,Pathology and Forensic Medicine ,Metastasis ,Lesion ,03 medical and health sciences ,0302 clinical medicine ,medicine ,Humans ,Pancreas ,medicine.diagnostic_test ,business.industry ,General Medicine ,medicine.disease ,Pancreatic Neoplasms ,medicine.anatomical_structure ,030220 oncology & carcinogenesis ,Abdominal ultrasonography ,Vomiting ,Female ,Sarcoma ,Radiology ,medicine.symptom ,business - Abstract
A 28-year old female presented with complaints of abdominal pain for 2 weeks and vomiting for 1 week. Abdominal ultrasonography (USG) revealed a 3x3 cm space-occupying solid lesion with necrotic areas in the pancreas. The patient was a known case of Ewing sarcoma of the pubic bone, diagnosed one year previously. USG guided fine-needle aspiration (FNA) from the pancreatic lesion was performed and smears were prepared, which were then stained with May-Grunwald-Giemsa (MGG) stain.
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- 2020
31. An Autopsy Report of an Adenoid Cystic Carcinoma Arising in the Trachea
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Anil Kumar, Kirti Gupta, Ashish Bhalla, Oshan Shrestha, and Gargi Kapatia
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Adult ,Male ,0301 basic medicine ,Chronic bronchitis ,medicine.medical_specialty ,Pathology ,Adenoid cystic carcinoma ,Autopsy ,Malignancy ,Pathology and Forensic Medicine ,03 medical and health sciences ,Fatal Outcome ,0302 clinical medicine ,Humans ,Medicine ,Sine qua non Clinicopathologic Correlation ,Asthma ,Lung ,business.industry ,respiratory system ,medicine.disease ,Carcinoma, Adenoid Cystic ,Dermatology ,030104 developmental biology ,medicine.anatomical_structure ,Oncology ,Otorhinolaryngology ,030220 oncology & carcinogenesis ,Bronchitis ,Tracheal Neoplasms ,business - Abstract
While adenoid cystic carcinoma is a common malignancy to arise within the salivary glands (21.9%) (Kokemueller et al. in Int J Oral Maxillofac Surg 33:25–31, 2004), it is seldom encountered as a tracheal mass and represents
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- 2018
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32. Adenoid Cystic Carcinoma of the Vulva: Report on a Rare Malignancy
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Chandan Krushna Das, Gargi Kapatia, Parikshaa Gupta, Rashmi Bagga, Bhavana Rai, and Arvind Rajwanshi
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medicine.medical_specialty ,Pathology ,Exocrine gland ,Adenoid cystic carcinoma ,Malignancy ,Vulva ,03 medical and health sciences ,0302 clinical medicine ,Bartholin's gland ,medicine ,Neoplasm ,Head and neck ,030219 obstetrics & reproductive medicine ,biology ,CD117 ,business.industry ,food and beverages ,Obstetrics and Gynecology ,medicine.disease ,Surgery ,stomatognathic diseases ,medicine.anatomical_structure ,030220 oncology & carcinogenesis ,biology.protein ,business - Abstract
Background: Adenoid cystic carcinoma (ACC) is a malignant neoplasm involving mainly the exocrine glands. The most common site of involvement is the head and neck region. However, the neoplasm can b...
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- 2019
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33. Multiple subcutaneous swellings in a young woman
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Khimit Jain, Gargi Kapatia, Arvind Rajwanshi, Vinay Keshavamurthy, and Parikshaa Gupta
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Adult ,Inflammation ,medicine.medical_specialty ,Histology ,business.industry ,General Medicine ,Dermatology ,Pathology and Forensic Medicine ,Subcutaneous Tissue ,Humans ,Medicine ,Female ,business ,Cell Aggregation - Published
- 2019
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34. Bilateral Adnexal Masses in a Young Female: Rare Presentation of Hepatocellular Carcinoma With Review of the Literature
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Gargi, Kapatia, primary, Parikshaa, Gupta, additional, Saha, Pradip K., additional, Rohit, Mehtani, additional, Madhumita, Premkumar, additional, and Rajvanshi, Arvind, additional
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- 2020
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35. Histological spectrum of pure neuritic leprosy with atypical clinical presentation at a tertiary care centre
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Sunil Dogra, Bishan Dass Radotra, Uma Nahar Saikia, Debajyoti Chatterjee, Gargi Kapatia, Manoj Kumar Goyal, and Tarun Narang
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medicine.medical_specialty ,business.industry ,General Earth and Planetary Sciences ,Medicine ,Leprosy ,Presentation (obstetrics) ,business ,medicine.disease ,Dermatology ,Tertiary care ,General Environmental Science - Published
- 2017
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36. Cerebrospinal fluid cytology: 'I can be here too'
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Gargi Kapatia and Arvind Rajwanshi
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Male ,Pathology ,medicine.medical_specialty ,Granuloma ,Histology ,Tuberculosis ,business.industry ,Cytodiagnosis ,Macrophages ,Cytological Techniques ,General Medicine ,Middle Aged ,Tuberculosis, Central Nervous System ,medicine.disease ,Pathology and Forensic Medicine ,Cerebrospinal fluid ,Cytology ,Acid-fast ,Humans ,Medicine ,business ,Cerebrospinal Fluid - Published
- 2020
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37. A Case of Leprosy Misdiagnosed as Lupus
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Gargi Kapatia, Saket Jha, Rajiv Kumar, Varun Dhir, and Aadhaar Dhooria
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medicine.medical_specialty ,Systemic lupus erythematosus ,Rheumatology ,business.industry ,Leprosy ,Medicine ,Humans ,Diagnostic Errors ,business ,medicine.disease ,Dermatology - Published
- 2019
38. Extramedullary hematopoiesis: Clinical and cytological features
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Radhika Srinivasan, Arvind Rajwanshi, Gargi Kapatia, Amarjot Kaur, Parikshaa Gupta, Pulkit Rastogi, Sreejesh Sreedharanunni, Manish Rohilla, Pranab Dey, and Nalini Gupta
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Adult ,Male ,Pathology ,medicine.medical_specialty ,Histology ,Adolescent ,Cytodiagnosis ,Biopsy, Fine-Needle ,H&E stain ,030209 endocrinology & metabolism ,Spleen ,Pathology and Forensic Medicine ,03 medical and health sciences ,Young Adult ,0302 clinical medicine ,Cytology ,medicine ,Humans ,Lymph node ,Aged ,medicine.diagnostic_test ,business.industry ,General Medicine ,Middle Aged ,medicine.disease ,Extramedullary hematopoiesis ,Bone marrow examination ,medicine.anatomical_structure ,030220 oncology & carcinogenesis ,Hematopoiesis, Extramedullary ,Female ,Bone marrow ,Lymph ,business ,Megakaryocytes - Abstract
Introduction Hematopoiesis usually occurs in bone marrow in adults and when it occurs at sites except for bone marrow, it is termed as extramedullary hematopoiesis (EMH). It is usually found in organs, which are vigorously involved in fetal hematopoiesis, including liver, spleen, and lymph nodes. FNAC is easy and rapid method to diagnose EMH. Aim To study the spectrum of extramedullary hematopoiesis (EMH) on fine-needle aspiration cytology (FNAC). Material and methods A total of 10 patients who were diagnosed with EMH on FNAC were studied over a period of 5.5 years. Smears were stained with May Grunwald Giemsa (MGG) and Hematoxylin and Eosin (H and E). The detailed clinical and cytomorphological spectrum of EMH were studied. Results The mean age of the patient was 42.5 years, with age ranging between 14 and 78 years. The commonest site of EMH was lymph node (n = 8, 80%) followed by paravertebral area (n = 2, 20%). Clinical diagnosis was EMH in just one case. Mean hemoglobin of the patient was 7.9 g/L. Bone marrow examination was available in 6 cases. On FNAC, we saw variable mixture of bone marrow elements including megakaryocytes (2.6%, 0-6%), myelocytes and metamyelocytes (29.2%, 18-33%), erythroid precursors (3.2%, 0-7%), polymorphs (21.7%, 10-36%), blasts (1.1%, 0-4%), eosinophils (2.5%, 0-7%), and lymphocytes (39.7%, 21-60%). Conclusion Cytopathologists must be alert of the clinical as well as cytological spectrum of extramedullary hematopoiesis for greater accuracy in diagnosis and to escape pitfalls in its diagnosis.
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- 2019
39. The clinical and cytomorphological spectrum of hydatid disease
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Pranab Dey, Nalini Gupta, Parikshaa Gupta, Jesty Pullatu Tom, Gargi Kapatia, Manish Rohilla, Radhika Srinivasan, and Arvind Rajwanshi
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Adult ,Male ,Pathology ,medicine.medical_specialty ,Histology ,May-Grunwald giemsa ,Adolescent ,Cytodiagnosis ,Biopsy, Fine-Needle ,030209 endocrinology & metabolism ,Periodic acid–Schiff stain ,Disease ,Haematoxylin ,Pathology and Forensic Medicine ,03 medical and health sciences ,chemistry.chemical_compound ,Young Adult ,0302 clinical medicine ,Echinococcosis ,Cytology ,Medicine ,Humans ,Child ,Retrospective Studies ,Lung ,business.industry ,Mean age ,General Medicine ,Middle Aged ,Aspiration cytology ,medicine.anatomical_structure ,chemistry ,030220 oncology & carcinogenesis ,Female ,business - Abstract
Introduction Hydatid disease (HD) is caused by the tapeworm of the genus Echinococcus. Fine-needle aspiration cytology (FNAC) is an expedient diagnostic technique that may be used for its rapid diagnosis. Aim To study the clinical and cytomorphological spectrum of HD diagnosed by cytology. Material and methods A total of 24 patients diagnosed with HD on FNAC and fluid were studied over a period of 5.5 years. May Grunwald Giemsa, Periodic acid Schiff, and Haematoxylin and Eosin stained smears were studied and analysed for the cytomorphological spectrum of HD. Results Amongst the 24 patients studied, the mean age was 29.8 years (range 6-64 years). There was equal sex preponderance with 12 males and 12 females. The most common organ involved was lung (54.1% of cases) followed by liver (25% of cases). Presence of laminated membranes (n-20, 83.3%) followed by presence of hooklets (n-13, 54.1%) were the common cytological features. Scolices and protoscolices representing endocyst were seen in 37.5% of cases (n-9). Conclusion Clinicians and pathologists should be aware of the clinical and morphological spectrum of HD respectively for immediate diagnosis followed by prompt management.
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- 2019
40. Fine-needle aspiration cytology of extra-salivary adenoid cystic carcinoma
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Pranab Dey, Uma Nahar Saikia, Gargi Kapatia, Radhika Srinivasan, Arvind Rajwanshi, Sangamitra Rajasekaran, Parikshaa Gupta, Manish Rohilla, and Nalini Gupta
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Adult ,Male ,medicine.medical_specialty ,Histology ,Lung Neoplasms ,Adolescent ,Adenoid cystic carcinoma ,Cytodiagnosis ,Biopsy, Fine-Needle ,Cytological Techniques ,030209 endocrinology & metabolism ,Salivary Glands ,Pathology and Forensic Medicine ,Metastasis ,Diagnosis, Differential ,03 medical and health sciences ,0302 clinical medicine ,Fine needle aspiration cytology ,medicine ,Humans ,Aged ,Aged, 80 and over ,Lung ,business.industry ,Liver Neoplasms ,Mean age ,General Medicine ,Middle Aged ,medicine.disease ,Salivary Gland Neoplasms ,Carcinoma, Adenoid Cystic ,medicine.anatomical_structure ,030220 oncology & carcinogenesis ,Female ,Radiology ,Male to female ,business - Abstract
Introduction Adenoid cystic carcinoma (ACC) is a ubiquitous tumour which can occur in several sites of the human body. Commonly, it affects the salivary glands but also can rarely occur in various extra-salivary locations. Aim To study the clinical and cytological features of extra-salivary ACC on fine needle aspiration cytology. Methods In this paper, we included 27 patients with extra-salivary ACC on fine needle aspiration cytology over a period of 5.5 years. The complete cytomorphological spectrum of extra-salivary ACC was studied. Results The mean age of the patients was 50.2 years, with age ranging between 14 and 80 years. Male to female ratio was 1:1.7 with 17 females and 10 males. The most frequent primary site was the orbit, and the most frequent sites of metastasis were liver and lung. Conclusion Cytopathologists should be alert about the full range of location as well as the cytological spectrum of extra-salivary ACC for greater precision in diagnosis and prompt treatment.
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- 2019
41. Secretory carcinoma: Fine needle aspiration cytology of a rare parotid gland tumour
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Lijanthung S. Kithan, Manish Rohilla, Radhika Srinivasan, Arvind Rajwanshi, Pranab Dey, Gargi Kapatia, and Nalini Gupta
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Male ,Pathology ,medicine.medical_specialty ,Histology ,business.industry ,Cytodiagnosis ,Biopsy, Fine-Needle ,Carcinoma ,Parotid gland tumour ,Breast Neoplasms ,General Medicine ,Middle Aged ,Pathology and Forensic Medicine ,Parotid Neoplasms ,Secretory Carcinoma ,Fine needle aspiration cytology ,medicine ,Humans ,Parotid Gland ,business - Published
- 2019
42. Sustained exposure to trypsin causes cells to transition into a state of reversible stemness that is amenable to transdifferentiation
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Jagat Ram, Gargi Kapatia, Manni Luthra-Guptasarma, Gurpreet Singh, Manoj Bhasin, Rajendra Kumar, Purnananda Guptasarma, Amanjeet Bal, Maryada Sharma, Beena E Thomas, and Swati Sharma
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Cell type ,Confluency ,Protease ,Cell culture ,Cell surface receptor ,Chemistry ,medicine.medical_treatment ,Transdifferentiation ,medicine ,Cell cycle ,Trypsin ,medicine.drug ,Cell biology - Abstract
During cell culture, trypsin, a serine protease, is applied to cells for 5-10 minutes to separate them from each other and from the underlying substratum so that they can be transferred to a different vessel, for re-plating, after growth medium containing 10 % serum has been added to the cells, in a well-known technique known as ‘passaging’. The serum in the growth medium contains alpha-1 antitrypsin, which is a potent inhibitor of trypsin, elastase and other serine proteases. Although what is used is bovine serum in which levels of proteins could be different from levels seen in humans, normal human serum contains A1AT (> 1 mg/ml; > ∼18 µmol/L) as well as trypsin itself (< 460 ng/ml, or ∼0.02 µmol/L), with the former in a ∼900-fold molar excess over the latter. Thus, it may be assumed there is also enough A1AT in the bovine serum added during passaging, to neutralize the trypsin (∼100 μM) present in the small volume of trypsin-EDTA solution used to separate cells. What are the consequences of not adding serum, when growth medium is added, or of maintaining cells for a few tens of hours in the presence of trypsin, in a serum-free growth medium? What does such sustained exposure to trypsin during cell culture do to cells? More generally, what are the responses of cells within an organism to the balance of trypsin and A1AT in the serum that bathes them constantly? We know that excesses and deficiencies in the levels of either trypsin or A1AT are associated with disease. We know that cellular metabolism can be influenced through signaling involving protease activated membrane GPCR receptors (PAR1-4). In particular, we know of a receptor called PAR2, which is specifically activated by trypsin, expressed by cells at baseline levels, and upregulated through some feedback involving trypsin-activation. We also know that cells at sites of injury or inflammation produce and secrete trypsin, and that this trypsin can act locally upon cells in a variety of ways, all of which have probably not yet been elucidated. Here, we show that sustained exposure to trypsin induces cells to de-differentiate into a stem-like state. We show that if serum is either not added at all, or added and then washed away (after confluency is attained), during cell culture, all cells exposed to exogenously-added trypsin undergo changes in morphology, transcriptome, secretome, and developmental potential, and transition into a state of stemness, in minimal essential medium (MEM). Regardless of their origins, i.e., independent of whether they are derived from primary cultures, cell lines or cancer cell lines, and regardless of the original cell type used, exposure to trypsin (∼10 µM; ∼250 µg/ml) at a concentration 10-fold lower than that used to separate cells during passaging (∼100 μM), over a period of 24-48 hours, causes cells to (1) become rounded, (2) cluster together, (3) get arrested in the G0/G1 stage of the cell cycle, (4) display increased presence of 5-hydroxymethyl cytosine in their nuclei (indicative of reprogramming), (5) display increased levels of activated PAR2 membrane receptor, (6) become capable of very efficient efflux of drug-mimicking dyes, (7) express factors and/or markers known to be associated with induction and/or attainment of stemness, with predominant expression of Sox-2 within cell nuclei; (8) display overall transcriptomic (RNASEQ) profiles characteristic of stemness; (9) secrete stemness-associated factors such as bFGF, and IL-1β, into the medium, in quantities sufficient to support autocrine function (in certain cases); and (10) display increased conversion of pro-MMPs into activated MMPs in the cell’s secretome. Notably, (11) inclusion of differentiating and/or transdifferentiating factors in the environment of such cells causes them to express markers associated with ectodermal, endodermal and mesodermal cell lineages and/or transdifferentiate into specific cell types, e.g., adipocytes or osteocytes.Most intriguingly of all, (12) the attained stemness appears to be reversible, i.e., withdrawal of trypsin from the medium prior to addition of any differentiating factors restores cells to their original morphology, also over a period of 24-48 hours. Further, (13) a known PAR2 agonist, and a known PAR2 antagonist, respectively, appear to mimic effects of trypsin addition and withdrawal/inhibition. In addition, (14) in experiments with a particular cancer characterized by high levels of stemness (TNBC; triple negative breast cancer), tissues of all TNBC patients express high levels of the PAR2 receptor, as do cells from a known TNBC-derived cell line. We propose that through their effects on PAR levels, and PAR activation status, the balance of trypsin and A1AT levels in organisms normally regulates cellular potential for differentiation, de-differentiation or transdifferentiation, in a local manner, with the default status being that A1AT inhibits trypsin and keeps cells differentiated, whereas sustained trypsin signaling at sites of injury through local production of trypsin helps to place cells into an intermediate state of stemness from which they can either return to their original differentiated state(s), or undergo factor-dependent differentiation, or transdifferentiation, into specific cell types or lineages. It is also possible that reduction in A1AT promotes regeneration. We present a core (RNASEQ-derived) signature for trypsin-induced stemness in human corneal fibroblasts (HCFs) and cells from a retinal pigment epithelial cell line (ARPE-19), noting that there are commonalities as well as differences between them, which suggests that this core signature will be amended with RNASEQ studies of more trypsin-exposed cell types. Our findings offer a possible explanation for the recent unexplained increase in the preference for serum-free protocols used for induction and maintenance of stemness involving iPSCs and mesenchymal stem cells. Also, our studies suggest a new approach to understanding and exploiting how organisms might use stemness, in adults. Trypsin-dominated serine protease induced reprogramming (SPIR) might offer a more natural, and suitably ‘softer’, method of reprogramming of cellular developmental potential for local regenerative requirements in animal tissues.
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- 2019
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43. Double Trouble: Filarial Monoarthritis in an Adolescent With Ewing Sarcoma
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Gargi Kapatia, Arvind Rajwanshi, Amal Basnet, Aman Sharma, Parikshaa Gupta, Sanjay Jain, and Siddhartha Sharma
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medicine.medical_specialty ,Adolescent ,business.industry ,Arthritis ,MEDLINE ,Bone Neoplasms ,Sarcoma, Ewing ,medicine.disease ,Dermatology ,Rheumatology ,Monoarthritis ,Medicine ,Humans ,Sarcoma ,business - Published
- 2019
44. Phacolytic glaucoma: A nearly forgotten entity
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Deepika Dhingra, Surinder Singh Pandav, Gargi Kapatia, Sushmita Kaushik, and Suman Grover
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medicine.medical_specialty ,genetic structures ,Anterior Chamber ,Ultrasound biomicroscopy ,Microscopy, Acoustic ,Visual Acuity ,Cataract Extraction ,Cataract ,Corneal Diseases ,03 medical and health sciences ,Tonometry, Ocular ,0302 clinical medicine ,Ophthalmology ,Anterior lens capsule ,Medicine ,Humans ,Antihypertensive Agents ,Intraocular Pressure ,Aged, 80 and over ,business.industry ,Phacolytic glaucoma ,Glaucoma ,Lens Nucleus, Crystalline ,General Medicine ,eye diseases ,030221 ophthalmology & optometry ,Anterior Capsule of the Lens ,Female ,Ocular Hypertension ,sense organs ,business ,Hypermature cataract ,030217 neurology & neurosurgery - Abstract
Purpose: To report a case of phacolytic glaucoma with rupture of anterior lens capsule in a case of hypermature cataract. Methods: Case report and literature review. Results: An 80-year-old woman presented with cloudiness and pain in the left eye for 1 day. The patient had visual acuity limited to perception of light with raised intraocular pressure of 70 mm Hg. Careful slit-lamp evaluation revealed corneal epithelial edema in superior quadrant and a deep and turbid anterior chamber. Ultrasound biomicroscopy confirmed the presence of a deep anterior chamber, a hypermature cataractous nucleus with lax capsular bag, and ruptured anterior lens capsule. The patient underwent extracapsular cataract extraction. Cytological examination of the lenticular fluid revealed the presence of lens protein-laden macrophages. Post-operatively, the patient had best-corrected visual acuity of 6/60 with advanced glaucomatous optic neuropathy. Conclusion: Phacolytic glaucoma can present with a cloudy cornea and a turbid anterior chamber mimicking endophthalmitis. Careful examination and ancillary investigations including ultrasound biomicroscopy was helpful in making an accurate diagnosis.
- Published
- 2019
45. The spectrum of malignant melanoma on cytology: A tertiary care center study
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Pranab Dey, Radhika Srinivasan, Arvind Rajwanshi, Gargi Kapatia, Manish Rohilla, Nalini Gupta, and Parikshaa Gupta
- Subjects
Adult ,Male ,medicine.medical_specialty ,Histology ,Inguinal lymph nodes ,Prominent nucleoli ,Biopsy, Fine-Needle ,030209 endocrinology & metabolism ,Tertiary care ,Pathology and Forensic Medicine ,Metastasis ,Tertiary Care Centers ,03 medical and health sciences ,0302 clinical medicine ,Cytology ,medicine ,Humans ,Melanoma ,Aged ,Aged, 80 and over ,business.industry ,General Medicine ,Middle Aged ,medicine.disease ,Aspiration cytology ,030220 oncology & carcinogenesis ,Lymphatic Metastasis ,Female ,Radiology ,Melanin pigment ,business - Abstract
INTRODUCTION Malignant melanoma accounts for around 3% of all malignancies. Fine-needle aspiration cytology (FNAC) is a convenient diagnostic procedure for the diagnosis of melanoma and its metastases. AIM To explore the cytological spectrum of malignant melanoma including the rare metastatic sites. MATERIAL AND METHODS A total of 51 patients of malignant melanoma or its metastases on FNAC were studied over a period of 5 years. The FNAC smears of these cases were analyzed in detail by two different observers (GC and PD). RESULTS Among the 51 patients studied, the mean age was 54 years (range 19-97 years). Male-to-female ratio was 1.04:1 with 25 females and 26 males. The commonest primary site of the melanoma cases was lower extremity. The inguinal lymph node was the most common site for metastasis. Melanin pigment was the predominant feature followed by prominent nucleoli. Epithelioid pattern was the predominant shape. CONCLUSION Cytopathologists must be aware of the wide range of morphological spectrum seen in the cases of melanoma for a greater accuracy in diagnosis and to circumvent pitfalls in diagnosing melanoma.
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- 2019
46. Fine needle aspiration cytology of a recurrent hand swelling
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Raja S. Peddinti, Pranab Dey, Gargi Kapatia, and Bishan D. Radotra
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Inflammation ,medicine.medical_specialty ,Histology ,Skin Neoplasms ,business.industry ,Merkel cell carcinoma ,Cytodiagnosis ,Biopsy, Fine-Needle ,General Medicine ,Middle Aged ,medicine.disease ,Hand ,Pathology and Forensic Medicine ,Hand swelling ,Carcinoma, Merkel Cell ,Fine needle aspiration cytology ,Medicine ,Humans ,Female ,Radiology ,business ,Ulcer - Published
- 2018
47. Splenic Hemangiomatosis: An Uncommon Vascular Lesion in an Infant
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Gargi Kapatia, Prema Menon, Kirti Gupta, Suvradeep Mitra, and K. L. N. Rao
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Male ,Pathology ,medicine.medical_specialty ,business.industry ,Splenic Neoplasms ,Infant ,Pediatric Tumor ,Spleen ,General Medicine ,Vascular lesion ,030204 cardiovascular system & hematology ,Pathology and Forensic Medicine ,Lesion ,03 medical and health sciences ,0302 clinical medicine ,medicine.anatomical_structure ,Vascular Tumors ,030225 pediatrics ,Pediatrics, Perinatology and Child Health ,medicine ,Humans ,medicine.symptom ,business ,Hemangioma ,Pediatric population - Abstract
Background: Vascular tumors of spleen represent a wide spectrum of lesions, ranging from benign to highly aggressive neoplasms. Among the benign tumors, localized hemangiomas are the most frequently encountered. Splenic hemangiomatosis is seldom seen especially in the pediatric population with anecdotal cases described in the literature. Case report: We present of 6-month-old child presenting with abdominal distention. The resected spleen was totally replaced with a hemangiomatous lesion. There were no other hemangiomatous foci outside the spleen. Conclusions: Hemangiomatosis limited to the spleen can occur in a child, and the present case demonstrates its characteristic histological features.
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- 2018
48. Facial Phaeohyphomycosis in an Immunocompetent Individual: A Rare Presentation of a Rare Fungus
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Roshan K. Verma, Tushar Pandey, Nandita Kakkar, Gargi Kapatia, and Harsimran Kaur
- Subjects
Adult ,Male ,Pathology ,medicine.medical_specialty ,Antifungal Agents ,Dermatology ,Fungus ,Stain ,Pathology and Forensic Medicine ,Silver stain ,030207 dermatology & venereal diseases ,03 medical and health sciences ,0302 clinical medicine ,Mycotic infection ,medicine ,Humans ,biology ,business.industry ,Verrucous Lesion ,General Medicine ,biology.organism_classification ,medicine.disease ,Phaeohyphomycosis ,Face ,Cutaneous Phaeohyphomycosis ,Histopathology ,Itraconazole ,business - Abstract
Phaeohyphomycosis is a rare mycotic infection caused by heterogenous groups of dematiaceous fungi involving the skin and subcutaneous tissue. Here, we report a case of cutaneous phaeohyphomycosis presenting as cauliflower-like verrucous lesion over the face in an immunocompetent individual. Histopathology showed suppurative granulomatous inflammation replete with pigmented broad fungal hyphae which is stained with periodic acid-Schiff stain, Grocott's methanamine silver stain, Schmorl's stain, and Masson-Fontana stain. Culture showed black-colored colonies identified as Exophiala spinifera.
- Published
- 2018
49. Fine‐needle aspiration cytology of chondroid syringoma
- Author
-
Gargi Kapatia and Pranab Dey
- Subjects
medicine.medical_specialty ,Histology ,business.industry ,Fine needle aspiration cytology ,Medicine ,Chondroid Syringoma ,General Medicine ,Radiology ,business ,Pathology and Forensic Medicine - Published
- 2019
- Full Text
- View/download PDF
50. Skin swelling in the axillary fold in an elderly man
- Author
-
Gargi Kapatia, Ashim Das, and Pranab Dey
- Subjects
Male ,medicine.medical_specialty ,Skin Neoplasms ,Histology ,business.industry ,Biopsy, Fine-Needle ,Axillary fold ,Cell Biology ,General Medicine ,Skin Diseases ,Pathology and Forensic Medicine ,Surgery ,Fine needle aspiration cytology ,Cytology ,Axilla ,Humans ,Medicine ,Skin swelling ,business ,Aged - Published
- 2019
- Full Text
- View/download PDF
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