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Purpose The rate of malignancy (ROM) among pediatric studies using the Bethesda System is 39.5% and 41.5% for atypia of undetermined significance/follicular lesion of undetermined significance and for suspected follicular neoplasm, respectively. Data reported on the basis of Bethesda System showed lower ROM in adults with indeterminate nodules (30.5 and 28.9% respectively). Studies on adults based on the Italian Society of Anatomic Pathology and Cytology (SIAPEC) classification, report ROM of 14.2% for TIR3a and 44.6% for TIR3b category, showing greater sensitivity in detecting malignancy. To date, no performance data are available about SIAPEC classification in pediatric age. Methods Retrospective data were collected from 200 pediatric subjects with thyroid nodules in the period 2000–2020. Results The distribution of cytological categories after fine needle aspiration biopsy (FNAB) was 7 TIR1, 4 TIR1c, 22 TIR2, 14 TIR3a, 9 TIR3b, 3 TIR4, and 16 TIR5. The surgical approach was performed in 40/200 subjects, with total ROM of 65% (0% for TIR1-TIR3a, 77.8% for TIR3b, and 100% for TIR4–TIR5). Total FNAB accuracy was 95%, while the sensibility and specificity were 92.3 and 92.6%, respectively. Conclusions The reported data seem to confirm a greater sensitivity of SIAPEC classification to identify malignancy within the indeterminate category also in pediatric age and not only in adulthood. This finding may orient clinicians toward clinical follow-up for the indeterminate TIR3a group and toward surgical approach with total thyroidectomy in the indeterminate TIR3b group, although this indication should be confirmed in further national multicenter studies including larger cohorts.

WOS:000622313800001 The aim of this study was to investigate the diagnostic accuracy rates of the patients who underwent an operation for parotid mass, by comparing their fine needle aspiration biopsy (FNAB) cytology results with the final pathology. A total of 136 patient files of those who applied to Otorhinolaryngology clinic due to parotid mass and underwent parotidectomy procedure between 2010 and 2020 at a tertiary center were scanned retrospectively. Database on patient age, gender, preoperative FNAB results, and final surgical histopathology results was created. The mean age of the patients was 48.26 +/- 17.37 Superficial parotidectomy was performed to 108 (79.4%) and total parotidectomy to 28 (20.6%) of the patients. The sensitivity of FNAB was found as 85.2%, specificity as 96.2%, positive predictive value as 85.2%, negative predictive value as 96.2% and accuracy as 94.0%. It is found that FNAB has the high specificity and high negative predictive value with high diagnostic accuracy on detecting preoperative malignancy in parotid gland. We think that FNAB is a significant, necessary and safe method in the diagnosis of parotid lesions in preoperative sense.

Aim: Papillary thyroid carcinomas (PTCs) usually have good prognosis. In the presence of lymph node metastasis, capsular invasion and extra-thyroidal extension, some PTCs may display aggressive behavior. Early diagnosis of these cases is extremely important. Ultrasound-guided fine needle aspiration biopsy (FNAB) is an important diagnostic procedure and may identify the PTC likely to behave aggressively. Our study aimed to examine the effects of FNAB on surgical strategy in patients with PTC. Methods: The data of 269 patients who underwent total thyroidectomy were evaluated in our retrospective cohort study. FNAB had been performed in 188 (70%) patients. Patients with non-incidental diagnoses were compared with patients who had incidental diagnoses in terms of parameters likely to be related to aggressive PTC. Results: Patients ≤ 45 years old were more common in the non-incidental group (P=0.041). Incidental diagnoses were common in females (P=0.014), those with nodules larger than 2 cm in diameter and in patients with ≥2 nodules (P=0.001). Postoperative remnant thyroid tissue was observed more commonly in incidental cases (P=0.008). Lymph node metastasis (P=0.044), capsular invasion (P=0.009), and extra-thyroidal extension (P=0.022) were more common in the non-incidental group. Conclusion: It is difficult estimate the behavior of PTCs preoperatively. Only a small number of PTCs can be preoperatively diagnosed with ultrasound-guided FNAB. The extent of surgery generally is defined by FNAB results. Detailed examination of all suspicious nodules is of great importance for earlier detection of aggressive PTCs and avoiding surgical over-treatment., Amaç: Papiller tiroid karsinomları (PTK) genellikle iyi prognozludur. Lenf nodu metastazı, kapsül invazyonu ve ekstratiroidal yayılım varlığında, bazı PTK’lar agresif seyir gösterebilir. Bu vakaların erken teşhisi son derece önemlidir. Ultrason eşliğinde ince iğne aspirasyon biyopsi (İİAB) önemli bir tanı prosedürüdür ve agresif davranış gösteren muhtemel PTK’ları erken tanıyabilir. Çalışmamız, PTK'lı hastalarda İİAB’nin cerrahi strateji üzerindeki etkilerini incelemeyi amaçlamıştır.Yöntemler: Retrospektif kohort çalışmamızda total tiroidektomi uygulanan 269 hastanın verileri gözden geçirildi. Preoperatif İİAB 188 (%70) hastaya uygulanmıştı. Non insidental tanı konan hastalar, insidental tanı konan hastalar ile PTK’nın agresif davranışına bağlı olabilecek parametreler açısından istatistiksel olarak karşılaştırıldı.Bulgular: Non-insidental grupta yaşı ≤ 45 olan hastalar daha sıktı (P=0,041). İnsidental vakalar kadınlarda (P=0,014), çapı 2 cm’den büyük nodüllerde ve nodül sayısı ≥2 olan hastalarda daha sıktı (P=0,001). Postoperatif rezidü tiroid dokusu insidental grupta daha sık gözlendi (P=0,008). Lenf nodu metastazı (P=0,044), kapsül invazyonu (P=0,009) ve ekstratiroidal yayılım (P=0,022) non-insidental grupta daha sıktı. Sonuç: PTK’ların biyolojik davranışlarını preoperatif olarak tahmin etmek zordur. Ameliyat öncesi ultrason eşliğinde İİAB kullanılarak PTK’ların az bir kısmı teşhis edilebilir. Genellikle ameliyatın kapsamı İİAB sonuçlarıyla belirlenmektedir. Tüm şüpheli nodüllerin detaylı muayenesi, agresif davranış gösteren PTK’ların daha erken tespiti ve aşırı cerrahi tedavinin önlenmesi açısından çok önemlidir.

Kualitas pewarnaan Diff-Quick bergantung pada beberapa faktor diantaranya adalah metode fiksasi yaitu fiksasi kering dan fiksasi basah. Kedua metode tersebut memiliki kekurangannya masing-masing, fiksasi kering dapat menyebabkan pecahnya sel sedangkan fiksasi basah lebih memakan waktu dan biaya dalam pengerjaannya, namun fiksasi kering lebih sering digunakan karena lebih cepat dan murah. Tujuan penelitian untuk membandingkan hasil pewarnaan Diff-Quick sediaan sitologi yang difiksasi dengan metode fiksasi kering dan metode fiksasi basah. Jenis penelitian adalah penelitian eksperimen. Sampel diperoleh dari RS K.R.M.T. Wongsonegoro Semarang berjumlah 36 sediaan yang dibagi menjadi tiga kelompok yaitu kelompok kontrol, kelompok fiksasi kering, dan kelompok fiksasi basah. Ketiga kelompok tersebut diwarnai dengan Diff-Quick. Pewarnaan sediaan fiksasi kering memberikan hasil 4 sediaan kurang baik, 5 sediaan baik, dan 3 sediaan sangat baik sedangkan pewarnaan sediaan fiksasi basah memberikan hasil 0 sediaan kurang baik, 8 sediaan baik, dan 4 sediaan sangat baik. Hal ini menunjukkan hasil pewarnaan sediaan yang difiksasi basah memiliki kualitas yang cenderung lebih baik dan lebih konsisten dibanding hasil pewarnaan sediaan fiksasi kering. Meskipun secara statistik melalui uji Post-Hoc menunjukkan tidak ada perbedaan, kualitas pewarnaan Diff-Quick sediaan sitologi yang difiksasi dengan metode fiksasi basah lebih baik dari pada fiksasi kering.

Background: Thyroid carcinoma generally has a good prognosis. The main focus of current research on thyroid carcinoma is to increase the accuracy of preoperative diagnosis of thyroid nodules. When the result of fine needle aspiration biopsy (FNAB) is indeterminate, clinicians often have doubts in determining the surgical management. Objective: Protein BRAF expression analysis can help improve the accuracy of FNAB and optimize the management of differentiated thyroid carcinoma. Methods: This study is a diagnostic test performed from October 2016 at Sanglah General Hospital with 38 patients as subjects who fulfilled the inclusion criteria. Data is being presented in descriptive form before diagnostic test is done to determine sensitivity, specificity, positive predictive value, negative predictive value and the accuracy of immunocytochemistry test for BRAF on indeterminate thyroid nodule. Results: Thirty-eight samples met the inclusion criteria during the study period. Three samples were male (7.9%) and 35 samples (92.1%) were female. The mean age of the sample was 45.21 years (SD ±10.910 years) with ages ranging from 23 to 66 years. Of the 12 samples undergoing isthmolobectomy, 7 samples (58.4%) were determined to be malignant from histopathological results. The sensitivity value of BRAF immunocytochemistry test is 45.45% with a specificity value of 81.25%, a positive predictive value of 76.92%, a negative predictive value of 52% and an accuracy of 60.50%. Analysis of the receiver operator (ROC) curve shows the area under the curve (AUC) of 63.4% with a confidence interval of 45.5–81.2%. Conclusion: Immunocytochemistry BRAF test have a reliable diagnostic value and can be taken into consideration in the preoperative diagnosis of thyroid malignancies.

Lymphadenopathy is a non-specific enlargement of lymph nodes which may be caused by infection, cancer, or autoimmune disease. To date, only a few studies reported the diagnostic value of fine-needle aspiration biopsy (FNAB) in lymphadenopathy. This study was performed to evaluate diagnostic reliability of FNAB for benign and malignant lymphadenopathy. This was a retrospective cross-sectional study. The obtained data were statistically analyzed for its sensitivity, specificity, and accuracy. Out of 126 collected FNAB cases with histopathological confirmed results in Dr. Sardjito General Hospital, Yogyakarta, 85 (67.4%) were malignant lymphadenopathy, consisting of 42 metastatic tumor cases, 38 non-Hodgkin lymphoma (NHL) cases, and 4 Hodgkin lymphoma (HL) cases.The overall diagnostic sensitivity, specificity, and accuracy of FNAB in lymphadenopathy was 85.88, 70.73, and 80.95%, respectively. In diagnosing metastatic tumors, FNAB had sensitivity of 83.33%; specificity of 89.28%; and accuracy of 87.3%. The sensitivity, specificity, and accuracy of FNAB in diagnosing NHL was 60.52, 94.31, and 84.12%, respectively. FNAB had a sensitivity of 25%, specificity of 95,90%, and accuracy of 93.65% to diagnose HL. Meanwhile, the accuracy of FNAB in diagnosing malignancies in generalized lymphadenopathy, head-neck lymphadenopathy, and inguinal lymphadenopathy was 90.90; 81.39 and 44.44%, respectively. In conclusion,FNAB has moderate diagnostic value in diagnosing overall malignant lymphadenopathy, including metastatic tumors. FNAB also has some limitations in diagnosing NHL and HL, with sensitivity less than 70% for both diseases. However, it has high accuracy to diagnose generalized lymphadenopathy.

To evaluate variables that could predict diagnosis during CT-guided fine-needle aspiration.Data from 249 patients who underwent FNAB from January 2010 to December 2012 were analyzed in a retrospective observational study.Mean age was 66.7 ± 11.5 years, male/female ratio 158/91 (63 vs. 37 %). The nodules were in right lung in 123 patients (49 %), in left lung in 126 patients (51 %), the upper, lower and middle lobe localizations were, respectively in 122 (49 %), 100 (40 %) and 17 (6 %) patients. Mean nodule-chest wall distance was 63.89 ± 21.38 mm. The tumor location, the needle diameter, the presence of necrosis or cavitation, the node-chest wall distance and the number of passages were not related to the diagnostic outcome (p = NS). The nodule diameter was predictive of diagnosis. Odds ratio for a 10-30 mm tumor was 2.51 (95 % OR: 1.24-5.08, p value = 0.011), the odds ratio for a 30-50 mm tumor was 2.39 (95 % OR: 1.22-4.69, p value = 0.011), and the odds ratio for a tumor larger than 50 mm was 4.44 (95 % OR: 1.89-10.44, p value = 0.001). Post-procedure pneumothorax occurred in 62 cases (25 %). The determinant factors for pneumothorax occurrence were emphysema, odds ratio 6.87 (95 % CI 1.07-44.10, p value = 0.04), and the number of pleural passages, odds ratio of 5.47 (95 % OR: 1.92-15.58), 7.44 (95 % OR: 2.58-21.5), 6.13 (95 % OR: 2.07-18.11) p value = 0.001 for one, two, three or more of three passages, respectively.In our experience, nodule size is the most important diagnostic factor during fine-needle aspiration, while the number of passages and the presence of emphysema constitute risk factors for pneumothorax occurrence.

Solid masses of the pancreas represent a variety of benign and malignant neoplasms of the exocrine and endocrine tissues of the pancreas. A tissue diagnosis is often required to direct therapy in the face of uncertain diagnosis or if the patient is not a surgical candidate either due to advanced disease or comorbidities. Endoscopic ultrasound (EUS) is a relatively new technology that employs endoscopy and high-frequency ultrasound (US). EUS involves imaging of the pancreatic head and the uncinate from the duodenum and imaging of the body and tail from the stomach. It has been shown to be a highly sensitive method for the detection of pancreatic masses. It is superior to extracorporeal US and computed tomographic (CT) scans, especially when the pancreatic tumor is smaller than 2-3 cm. Although EUS is highly sensitive in detecting pancreatic solid masses, its ability to differentiate between inflammatory masses and malignant disease is limited. Endoscopic retrograde cholangiopancreatography (ERCP) brushing, CT-guided biopsies, and transabdominal ultrasound (US) have been the standard nonsurgical methods for obtaining a tissue diagnosis of pancreatic lesions, but a substantial false-negative rate has been reported. Transabdominal US-guided fine-needle aspiration biopsy (US-FNAB) has been used for tissue diagnosis in patients with suspected pancreatic carcinoma. It has been shown to be highly specific, with no false-positive diagnoses. With the advent of curvilinear echoendoscopes, transgastric and transduodenal EUS-FNAB of the pancreas have become a reality EUS with FNAB has revolutionized the ability to diagnose and stage cancers of the gastrointestinal tract and assess the pancreas. Gastrointestinal cancers can be looked at with EUS and their depth of penetration into the intestinal wall can be determined. Any suspicious appearing lymph nodes can be biopsied using EUS/FNAB. The pancreas is another organ that is well visualized with EUS. Abnormalities such as tumors and cysts of the pancreas can be carefully evaluated using EUS and then biopsied with FNAB. There are many new applications of EUS using FNAB. Researchers are looking to deliver chemotherapeutics into small pancreatic cancers and cysts. Nerve blocks using EUS/FNAB to inject numbing medicines into the celiac ganglia, a major nerve cluster, are now routinely performed in patients with pain due to pancreatic cancer. The aim of this study is to perform a review of the literature regarding the usefulness of EUS/FNAB in the diagnosis of pancreatic adenocarcinoma.

Breast lump is a very common complaint among women, especially during the reproductive year. Fine needle aspiration biopsy (FNAB) is a less invasive procedure. It is usually performed as an initial diagnosis prior to the operative procedure. The accuracy of the FNAB in Indonesia needs to be elaborated. The study aimed to evaluate the sensitivity and specificity of FNAB in diagnosing breast neoplasm. This is a retrospective study with cross sectional design, involving 145 patients with breast lump who underwent FNAB and histopathology examination in Dr. Sardjito General Hospital, Yogyakarta, from 2012 to 2014. Data analysis showed that female to male ratio was 23. 2:1 commonly occurred at 41-50 years old. Forty-one cases (28.28%) diagnosed as a benign lesion with fibrocystic changes as the most frequentcase (11.19%). The malignant case was 104 cases (71.72%) with ductal carcinoma as the highest case (51.49%). FNAB achieved a sensitivity of 85.58%, a specificity of 100% and a total accuracy of 89.66% in determining the benign or malignant breast lump. The accuracy, sensitivity and specificity of FNAB in diagnosing ductal carcinoma were 83.58%, 85.51% and 81.54%, respectively. The accuracy, sensitivity and specificity of FNAB to diagnose fibrocystic changes lesion were 85.82%, 26.67% and 93.28%, respectively. FNAB can be used as an alternative diagnostic tool to diagnose breast neoplasm. It provides rapid, cheaper, effective, valuable, and less invasive procedure in diagnosis of breast lump.

Objective: The diagnostic accuracy of thyroid fine needle aspiration biopsy (FNAB) can be improved by the combination of cytological and molecular analysis. In this study, washing liquids of FNAB (wFNAB) were tested for the BRAF V600E mutation, using the sensitive and cost-effective technique called high-resolution melting (HRM). The aim was to demonstrate the feasibility of BRAF analysis in wFNAB and its diagnostic utility, combined with cytology. Design: Prospective cohort study. Methods: 481 patients, corresponding to 648 FNAB samples, were subjected to both cytological (on cells smeared onto a glass slide) and molecular analysis (on fluids obtained washing the FNAB needle with 1 ml of saline) of the same aspiration. BRAF V600E analysis was performed by HRM after methodological validation for application to wFNAB (technique sensitivity: 5.4%). Results: The cytological results of the FNAB were: 136 (21%) nondiagnostic (THY1); 415 (64%) benign (THY2); 80 (12.4%) indeterminate (THY3); 9 (1.4%) suspicious for malignancy (THY4); 8 (1.2%) diagnostic of malignancy (THY5). The BRAF V600E mutation was found in 5 THY2, 2 THY3, 6 THY4 and 6 THY5 samples. Papillary carcinoma diagnosis was histologically confirmed in all BRAF+ thyroidectomized patients. BRAF combined with cytology improved the diagnostic value compared to cytology alone in a subgroup of 74 operated patients. Conclusions: HRM was demonstrated to be a feasible method for BRAF analysis in wFNAB. Thanks to its sensitivity and cost-effectiveness, it might be routinely used on a large scale in clinical practice. In perspective, standby wFNAB samples could be analyzed a posteriori in case of indeterminate cytology and/or suspicious findings on ultrasound.

Summary Spontaneous or fine-needle aspiration (FNAB)-induced remission of primary hyperparathyroidism (PHPT) may occur, especially for cystic lesions. However, the disease generally relapses over a short time period. We present a case of PHPT due to an enlarged hyperfunctioning parathyroid that underwent long-term (almost 9 years) clinical and ultrasonographic remission after the disappearance of the lesion following ultrasound (US)-assisted FNAB. A 67-year-old woman with PHPT underwent biochemical and US examinations that confirmed the diagnosis and showed a lesion suggestive for parathyroid adenoma or hyperplasia. US-FNAB of the lesion confirmed its parathyroid nature by means of elevated levels of parathyroid hormone within the needle washing fluid. At the second visit, the patient referred slight neck swelling that resolved spontaneously in the days after the US-FNAB. At subsequent follow-up, the enlarged parathyroid was not found; it was visible neither with US nor with magnetic resonance imaging. Biochemical remission persists after 9 years. This is the first reported case of cure of PHPT after US-FNAB performed on a hyperfunctioning parathyroid resulting in its complete disappearance over a period of 9 years of negative biochemical and ultrasonographic follow-up. Learning points: Spontaneous or fine-needle aspiration-induced remission of primary hyperparathyroidism can occur. Both circumstances may present disease relapse over a variable time period, but definite remission is also possible even though long-term periodic follow-up should be performed. Parathyroid damage should be ruled out in case of neck symptomatology after parathyroid fine-needle aspiration or spontaneous symptomatology in patients with history of primary hyperparathyroidism.

Background The American Thyroid Association published revised guidelines in 2015 on the management of differentiated thyroid cancer in adults. One of the key changes introduced in the revision proposes that diagnostic biopsy be based on ultrasound findings (i.e. size and nodule characteristics). The overall effect of these changes results in fewer nodules requiring biopsy. This study was conducted to determine if the changes to the guidelines will result in overlooked thyroid cancers, specifically malignancies with aggressive characteristics measuring between 1 and 1.49 cm. Methods Patients (n = 2083) with thyroid nodules who underwent total or subtotal/hemi thyroidectomy with or without neck dissection by a single surgeon between 2006 and 2016 were retrospectively enrolled. Demographic information and nodule characteristics were collected for all patients. Ultrasonography and final pathology reports were reviewed for patients with thyroid nodules between the sizes of 1–1.49 cm (n = 155). Results 45% (n = 70) of patients with nodules between 1 and 1.49 cm were “low suspicion” nodules according to ultrasound. 47 of these nodules contained malignancies on final histopathological examination, 100% of which were of the papillary subtype. 21% (n = 10) of these malignant nodules demonstrated extrathyroidal extension and 34% (n = 16) were associated with regional metastases. Conclusions Reliance on sonographic patterns alone could result in missed cancer diagnoses in patients with thyroid nodules measuring between 1 and 1.49 cm. Moreover, a portion of these malignancies may be associated with aggressive features. The effect of this finding on long-term outcomes is unclear.

The goal of the study was to determine diagnostic value of fine needle aspiration biopsy (FNAB) in detection of malignant thyroid tumors based on retrospective analyses of 40696 FNAB of patients with thyroid nodules. Results. Comparison of the results of FNAB with postoperative histological examination data from 3004 patients revealed that the rate of false positive cytopathological results was 1.2% and the rate of false negative results was 1.8%. The sensitivity reached 99.67%. The specificity of FNAB when taking into account follicular lesions dropped to 16.29%, while leaving follicular lesions - 94.29%. Cytological results of 49609 FNAB of patients with thyroid nodules according to Bethesda system were arranged as follows: noninformative results - 8%, benign nodules - 81.9% (colloid nodules - 71.6%, autoimmune thyroiditis - 10.2%, subacute thyroiditis and others - 0.02%), follicular lesions - 7.2% (follicular neoplasm - 7.1%, follicular lesion of indeterminate value - 0.1%), suspicious for malignancy - 0.02%, malignant tumor - 3%, among the latter papillary carcinoma - 93%. Malignant tumors, according to postoperative histological examination, were detected among the group with cytological diagnosis “follicular neoplasm” in 16.3% of cases. After performing FNAB of regional lymph nodes with suspicious ultrasound signs the metastases of papillary carcinoma were revealed in 24.6% of cases. Application of FNAB in clinical practice at our Center to all patients with thyroid nodules of 1 cm in size and larger resulted in increment of thyroid operations for oncological indications from 12.5% in 2004 to 53% in 2012. Conclusion. FNAB under ultrasound control is the most informative differential method for thyroid diseases, permitting to reveal primary and metastatic thyroid lesions. FNAB allow to evade nonobligatory diagnostic operations in many patients.

Background. The purpose of this retrospective study was to compare the results and complication rate in CT guided percutaneous trans-thoracic fine needle aspiration biopsies (FNAB) and core biopsies of lung lesions, and to determine the applicability of these needles. Patients and Methods. In 242 patients (166 males; 76 females) with mean age of 58.9 years (13-84 years) CT guided biopsies of lung lesions were performed on dual slice CT equipment. The average diameter of lung lesion was 2.9 cm (1.2-6.3 cm). For FNAB's 20 - 22 G Chiba needles and for core biopsies 14 G biopsy needles were used. The samples were sent for the histological analysis. The cytological or histological results and the eventual complications were compared. Results. FNAB's cytological samples were adequate for definitive diagnosis in 117 patients (79.60 %) and inadequate in 30 patients (20.40 %). Core biopsies samples were adequate in 92 (96.85 %) patients and non-representative (necrotic tissue) in 3 (3.15 %). Pneumothorax as the most frequent complication was detected in 14 (9.7 %) of the patients in the group of FNAB's and in 30 (31.5 %) of the patients with the core biopsy group. Conclusions. The results showed that percutaneous transthoracic CT guided biopsies of lung lesions were an effective and safe procedure in the diagnosis of lung lesions. Core biopsy gives a higher percentage of representative samples than FNAB, and is a preferred method regardless of the higher rate of complications.

Paclikova K., P. Kohout, M. Vlasin: Catheter Biopsy as a Useful Tool to Establish an Early Diagnosis for Canine Prostatic Disorders. Acta Vet. Brno 2007, 76: 475-485. In the study conducted on 29 pre-selected patients, we intended to evaluate the reproducibility of prostatic catheter biopsy (CB) as a minimally invasive procedure, directly comparing it to another well-established method, namely ultrasound-guided fi ne-needle aspiration biopsy (USG-FNAB). As a direct control we used histopathological evaluation and microbial cultivation of samples obtained by percutaneous Tru-Cut biopsy. Evaluating our data, we found that for establishing proper diagnosis by means of cytology, less invasive catheter biopsy (CB 75.86%) is at least comparable to already proven ultrasound-guided fi ne needle aspiration biopsy (USG-FNAB 72.41%), while catheter biopsy (CB 13 cases out of 29) was signifi cantly (p < 0.0001) more sensitive in actual identifi cation of infectious agents than ultrasound-guided fi ne needle aspiration biopsy (USG-FNAB 2 cases of 29).We believe that an early microbial evaluation of patients suffering from prostatic disorders helps to target antimicrobial treatment in the beginning of therapy, reducing the risk of failure due to bacterial resistance.

Introduction : Fine-needle aspiration biopsy (FNAB) as a means of evaluation of palpable soft tissue lesions is poorly utilized in our environment despite the fact that it safe, cheap, quick and easy to perform. Methods : All cases of cases of palpable soft tissue lesions of the trunk and extremities where FNAB was used as the initial evaluation tool were reviewed. Furthermore, the records for corresponding cases that had open excision biopsy and ultimately had histologic diagnosis out of these cases were also retrieved and correlated with the final diagnosis from FNAB. Results : Out of 142 aspirates, only 107(75.3% of cases) fulfilled the inclusion criteria for the study. The age range was from 0-85 years (mean = 41.2 yrs.) with a roughly equal male:female ratio. The lesions were located in the trunk -56 cases, upper arm -7, forearm -1, hand -1, thigh -28, leg -7 and the foot-7. The FNAB was diagnosed as benign in 56 (52.3%) cases, malignant in 48 (44.8 %) cases and suspicious of malignancy in 3(2.8%) cases. The cases were cytomorphologically classified into the following categories: Lipomatous (32 cases), epithelia (18), spindle cell (14), inflammatory (13) pleomorphic (11), small round (6), myxoid (5), epitheloid/ polygonal (1) and others (7). The sensitivity and specificity of diagnosed cases with FNAB as either benign or malignant when correlated with histology were 95% and 100% respectively. Conclusion : FNAB is a valuable tool in the initial evaluation of palpable soft tissue lesions especially in primary soft tissue neoplasms and clinically suspected metastatic carcinomas.

WOS: 000361304600009 PubMed: 25843622 Paraffin embedded tissue sections and fine needle aspiration biopsy (FNAB) are important methods for diagnosis. We compared thyroid tissue obtained by FNAB to paraffin embedded sections to determine whether there were differences in detection of the amounts of argyrophilic nucleolar organizing region (AgNOR) proteins. Twenty-two patients with papillary thyroid carcinoma were included in the study. Slides were prepared with both FNAB tissue and 3 mu m sections of paraffin embedded tissue, and stained for AgNOR. One hundred nuclei per individual were evaluated; total AgNOR number/nucleus (TAn/TNn) and total AgNOR area/nuclear area (TAa/TNa) of individual cells were determined. Mean TAn/TNn and TAa/TNa values were 4.800 +/- 1.118 and 13.382 +/- 2.612, respectively, for FNAB samples; corresponding values were 2.406 +/- 0.649 and 8.49 +/- 0.893, respectively, for paraffin embedded sections. The differences between FNAB materials and paraffin embedded tissue sections were significant for the mean TAn/TNn and TAa/TNa values. Significant differences in the amounts of AgNOR protein detected were found between FNAB and paraffin embedded tissue sections.

Image-guided, fine-needle aspiration (FNA) cytology is performed currently in patients with malignant disease who have suspected adrenal metastases. The objective of this study was to evaluate the usefulness and safety of FNA cytology in patients with incidental adrenal masses and functioning tumors.Computed tomography (CT)-guided or ultrasound-guided aspirates using 21-23-gauge needles were performed successfully in 70 patients with functioning (n = 38 patients) and nonfunctioning (n = 32 patients) adrenal masses (median size, 4 cm; range, 3-12 cm) that were detected previously by CT scans.Definitive histology was available in 68 patients (97.1%), showing 53 benign tumors (77.9%), 11 primitive malignant tumors (16.2%), and 4 unsuspected adrenal metastases (5.9%) in patients with unknown primary tumors. In two patients with aspirate reports that ruled out malignancy, the mass was unchanged on CT scan follow-up; thus, they were considered benign lesions. The benign masses were significantly smaller (P0.01), although seven malignant tumors (46.7%) measured 3-4 cm in greatest dimension, and eight benign lesions (14.5%) measured 5-6 cm in greatest dimension. Sensitivity, specificity, positive predictive value, negative predictive value, and accuracy were 66.7%, 96.4%, 83.3%, 91.4%, and 90.0%, respectively, for CT scan and 93.3%, 100%, 100%, 98.2%, and 98.6%, respectively, for FNA cytology. The morbidity rate of image-guided FNA cytology was 4.3% (two patients with self-limited, asymptomatic pneumothorax and one patient with spontaneously resolved adrenal hematoma).Adrenal FNA cytology represents a safe and specific procedure for evaluating patients with adrenal masses measuring2 cm in greatest dimension. FNA is able to reveal malignancies and unsuspected pheochromocytomas and should be performed in all patients with adrenal tumors whenever requested for surgical planning.

OBJECTIVE: To investigate the correlation between serum thyroid-stimulating hormone (TSH) concentration and nodule nature in pediatric patients with thyroid nodules, with the aim of identifying a marker able to differentiate benign and malignant nodules. STUDY DESIGN: This was a retrospective analysis of serum TSH concentrations in a multicentric case series of 125 pediatric patients with benign and malignant thyroid nodules. RESULTS: Of the 125 patients, 99 had benign thyroid nodules and 26 had differentiated thyroid cancer (24 papillary and 2 follicular). Final diagnosis was based on surgery in 57 cases and on a benign cytology plus clinical follow-up in 68 cases. Serum TSH concentration was significantly higher in patients with thyroid cancer compared with those with benign nodules (3.23 ± 1.59 mU/L vs 1.64 ± 0.99 mU/L; P < .001). Binary logistic regression analysis revealed that serum TSH was the sole predictor of malignancy (P < .001). Dividing the patient cohort into 5 groups based on serum TSH quintiles (TSH cutoffs 0.40, 1.00, 1.50, 1.80, and 2.80 mU/L), we observed that cancer prevalence increased in parallel with serum TSH (P < .001), with respective rates of 0%, 4%, 16%, 32%, and 52% in the 5 quintile groups. CONCLUSION: Because cases with malignant nodules are most likely seen in the upper normal serum TSH range (ie, >2.8 mU/L), serum TSH concentration can serve as a predictor of thyroid cancer in pediatric patients with thyroid nodules and can inform the decision of when to submit patients to further investigation by cytology.

Objective: To assess the role of fine-needle aspiration biopsy (FNAB) in the management of pediatric thyroid nodules. Methods: Results of 30 FNABs performed in our clinic were retrospectively reviewed. Clinical and surgical follow-up data were obtained from the patient files, and clinical correlation and accuracy of FNAB were evaluated. Results: The results of 30 FNABs were reported as benign in 24 (80%), insufficient in 4 (13.3%) patients, malignant in 1 (3.3%), and suspicious in 1 (3.3%) patient. One patient with a FNAB result of malignancy underwent surgery and the histological diagnosis was papillary carcinoma. FNAB was repeated in two of the insufficient biopsies, and reported as benign; in one of these patients, the thyroid nodule disappeared and in one, remained stable at clinical follow-up. Four of the patients with benign FNAB results underwent surgery at clinical follow-up because of an increase in the size of the nodules and one patient was found to have papillary carcinoma. The remaining patients were clinically followed. In this study, the malignancy prevalence was 6.6% in patients with thyroid nodules. There was only one falsenegative case. Conclusion: FNAB is a reliable diagnostic tool in the management of pediatric thyroid nodules. © Journal of Clinical Research in Pediatric Endocrinology.

US-guided fine needle aspiration cytology is currently the best diagnostic tool for thyroid nodules. The aim of this research was to make a detailed and objective determination of the morphological characteristics of cells in cytological smears in an attempt to distinguish benign from malignant follicular tumors. The research included 62 patients with cytologically diagnosed follicular or oncocytic tumors, and 15 patients with nodular hyperplasia. Echographic findings were divided into three groups: isoechogenic, hypoechogenic and hyperechogenic nodules. We analyzed the cellularity of the smear, cohesion between follicular cells, acinar formations, bare nuclei, characteristics of the nucleus and the cytoplasm, and the presence of colloid. The statistical analysis of cytological parameters has indicated that none of the cytological parameters alone is discriminating enough between non-tumor and tumor changes, or benign and malignant follicular thyroid nodules. The analysis of age, sex, nodule size and ultrasound findings has not shown the correlation between any of these parameters with the malignant or benign follicular tumors. The cytological analysis of the smears for patients with follicular tumors, in combination with clinical data and other diagnostic methods, contributes to more precise diagnostics, but is not sufficient for the differentiation between benign and malignant follicular tumors.

The project of Russian clinical practice guidelines for diagnosis and treatment of differentiated thyroid cancer is dedicated to the management of patients with differentiated thyroid cancer. The guideline modifications 2016 include the following matters: indication for fine-needle aspiration biopsy, calcitonin screening, standards for biopsy results, indication for suppressive therapy and thyroid replacement therapy, targeted therapy in patients with radioiodine-refractory differentiated thyroid cancer.

Amaç: İnce iğne aspirasyon biyopsisi (İİAB) sonuçlarımız eksizyonel biyopsi sonuçları ile karşılaştırılarak sitolojinin tanısal değerinin araştırılması amaçlanmıştır. Hastalar ve Yöntemler: Baş ve boyun bölgesinde tiroid dokusu hariç değişik kitlelerden elde edilen 164 aspirasyon materyalinin sitoloji sonuçları, histopatolojik tanıları ile karşılaştırıldı. Hastalar kitlenin kaynaklandığı yere göre tükürük bezleri, lenf nodları ve kistik kitleler olarak üç gruba ayrılarak İİAB’nin duyarlılık, özgüllük, tanı doğruluğu değerleri her grup için araştırılmıştır. Bulgular: Baş ve boyun kitlelerini birlikte değerlendirdiğimizde duyarlılık, özgüllük, tanı doğruluğu değerleri sırasıyla, %80.64, %100, %96.34’tür. Bu değerler sırasıyla tükürük bezlerinde %69.2, %100, %96; lenf nodu patolojilerinde %88.8, %100, %94.1 ve kistik lezyonlarda ise her üç değer % 100’dür. Yalancı pozitif sonuca hiç rastlanmazken, yalancı negatiflik oranı %3.6 (6 olgu) olarak bulunmuştur. Sonuç: İnce iğne aspirasyon biyopsisi baş ve boyun kitlelerinin tanısında güvenli, kolay ve faydalı bir tanı yöntemidir., Objectives: This study aims to assess the diagnostic accuracy of cytology by comparison of the results of fine-needle aspiration biopsies (FNAB) with histopathologic examination. Patients and Methods: The cytology results of 164 aspirates taken from a variety of head and neck masses excluding thyroid tissues were compared with histopathologic diagnoses. The patients were divided into 3 groups based on the origin of the masses as salivary glands, lymph nodes and cystic masses according to histopathologic diagnoses, and the sensitivity, specificity and accuracy of FNAB were analyzed for each group. Results: The sensitivity, specificity and accuracy of FNAB were 80.64%, 100%, 96.34% respectively in all head and neck masses. Those were %69.2, %100, %96 in salivary glands; 88.8%, 100%, 94.1% in lymph nodes; 100% for each value in cystic lesions, respectively. Fine-needle aspiration biopsy was found to have a false-negative rate of 3.6 ( 6 cases ) and no false-positive result. Conclusion: Fine-needle aspiration biopsy is a safe, easy and useful diagnostic tool for head and neck masses.

Aims: To ascertain the cytological diagnosis of metastatic lesions with special reference to the clinicopathological analysis of the primary site in cases of epithelial and non-epithelial tumors. Materials and Methods: One hundred seventy-one suspected metastatic lesions were aspirated with a 22-23G needle and the smears were fixed and stained. The cases in which the primary site was not evident at the time of initial presentation were subsequently subjected to thorough physical examination followed by radiological investigations for the search of the primary site. Histopathological examination was performed in 16 cases with inconclusive cytological impression. Observations: Of the total cases of metastatic lesions, 155 cases (90.6%) were diagnosed by fine needle aspiration biopsy and 16 cases (9.4%) by histopathology. The majority of the cases, 81 (47.4%), were observed in the fifth decade of life, followed by 76 cases (44.4%) in the sixth decade and 11 cases (6.4%) in the seventh decade of life. Lymph nodes were the most frequent site of metastasis in 115 cases (67.3%), with the majority in the cervical group. The oropharynx, including the oral cavity and pharyngolarynx, was observed to be the most common primary site, 55 cases (32.2%). Conclusion: The most critical aspect of the evaluation of metastatic cases is the accurate pathologic assessment of the malignant tissues in conjunction with pertinent clinical data. Such close collaboration between the clinician and the pathologist may maximize the diagnostic potential in treatable primary tumors.

A majority of intraocular tumors can be diagnosed based on clinical examination and ocular imaging studies, which obviate the need for diagnostic ophthalmic fine needle aspiration biopsy (FNAB). Overall, diagnostic accuracy of ophthalmic FNAB is high but limited cellularity can compromise the diagnostic potential of ophthalmic aspirate samples. The role of ophthalmic FNAB is limited in retinal tumors. Orbital FNAB should be considered in the evaluation of lacrimal gland tumors, orbital metastasis, and lymphoproliferative lesions. Negative cytologic diagnosis of malignancy should not be considered unequivocal proof that an intraocular malignancy does not exist. With improved understanding of genetic prognostic factors of uveal melanoma, ophthalmic FNAB is gaining popularity for prognostic purposes in combination with eye conserving treatment of the primary tumor. In special clinical indications, ancillary studies such as immunohistochemistry and FISH can be performed on ophthalmic FNAB samples. Assistance of an experienced cytopathologist cannot be overemphasized.

OBJECTIVE: To explore the possible advantages that plastic embedding offers to fine needle aspiration biopsy (FNAB). STUDY DESIGN: A series of 54 FNABs was fixed in Kryofix (30 cases) and acetone (24 cases), plastic embedded and cut using a rotative microtome. The 2-micron sections obtained were May-Grünwald-Giemsa and Papanicolaou stain in all cases; mucicarmine, Alcian Blue, periodic acid-Schiff (PAS), PAS-diastase and Feulgen stain for DNA cytometric evaluation were also applied in five cases. Immunocytochemical staining using the antibodies cytokeratin 1-8, epithelial membrane antigen, vimentin, Ki-67, lysozime, calcitonin and carcinoembryonic antigen was carried out with the immunoalkaline phosphatase method. RESULTS: The fragments in the sections were perfectly two dimensional; the architectural features of the original tissues were preserved. Morphologic details of nuclear membranes, nucleoli and mitotic figures were excellent. Cytochemical and immunocytochemical stains were successful in all cases. Immunostains showed the precise location of the signal (nuclear, nucleolar or cytoplasmic), a clear background and preservation of morphology. CONCLUSION: Plastic embedding can be applied to FNAB to solve the problem of dense cellular groups, to study structural and cellular details, and to capitalize on the diagnostic material available for serial cytochemical, quantitative and immunocytochemical purposes.

A series of 1956 fine-needle aspiration biopsies (FNAB) of breast masses is described. The diagnostic accuracy of this series (sensitivity, 95.7%; specificity, 89.6%; predictive value of positivity, 95.9%; and efficiency, 94.0%) was compared with that published in the literature. Statistically significant differences were found between the level of diagnostic accuracy in series published by pathologists who diagnosed smears prepared by clinicians and surgeons (Group A), and those published by pathologists who performed palpation and aspiration, and made the cytologic diagnosis by themselves (Group B). These differences mainly consisted of a lower number of false-positives and "unsatisfactory" samples in Group B series.