Assessing the Ultrasound Guided Fine Needle Aspiration in Diagnosis of Thyroid Nodules (original) (raw)
Related papers
Caspian Journal of Internal Medicine, 2011
Background: Good cytological sample is very important for the cytological diagnosis of thyroid nodules. The aim of this study was to evaluate the adequacy of prepared samples by the combination of aspiration and non-aspiration fine needle biopsy. Methods: In this descriptiveanalytical study, sampling was done simultaneously for each patient in fine needle aspiration and non-aspiration biopsy. The sufficiency of samples was studied using Mair Scoring System. Wilcoxon Signed Rank test was used for the data analysis. Results: Three hundred two cases (289 females, 13 males) with the mean age of 43.83±12.9 years were evaluated. Inadequate samples were 31 (10.3%) in fine needle aspiration, 40 (13.2%) in non-aspiration and 13 cases (4.3%) by using two methods together (p=0.0001). The average total score was 6.00±2.17 in fine needle aspiration and 5.76±2.26 in non-aspiration method (p=0.08), and 6.6±1.98 in the combination of the two methods (p<0001 comparing with one method alone). Conclusion: The results show that using both methods simultaneously in each nodule considerably increases the efficiency of samples for cytological diagnosis.
ISRN Endocrinology, 2011
The objective was to analyze the results of UG-FNAB, performed in unselected consecutive patients with thyroid nodules. Methods. The UG-FNAB records were analyzed in this retrospective study. Indication for biopsy was the presence of at least one nodule detected by ultrasound. Results. 330 patients at mean age ± SD 48.4 ± 11.2 years; women/men = 12.8/1 were analyzed. From the total 596 nodules found 546 (91.6%) were investigated with 1231 punctures (2.3 per nodule and 3.7 per patient). Benign solitary nodules had 42.7%, multinodular goiter (MNG) 44.8%, inconclusive 4.8%, and others 2.1% and malignant nodules 5.5% of the patients (6.6% of solitary and 5.1% of MNG patients). The risk for a separate nodule in MNG to be malignant was 2.7%. Conclusions. UG-FNAB is a safe and reliable diagnostic approach for thyroid nodules. It is the method of choice for hypo- and isoechoic not purely cystic solitary nodules, regardless of the nodule size. In MNG, its positive predictive value and diagno...
Role of fine-needle aspiration cytology in evaluating thyroid nodules
Saudi Medical Journal
To evaluate the accuracy and efficacy of fine-needle aspiration cytology (FNAC) in diagnosing thyroid nodules, correlating it with the histopathological findings. Methods: A retrospective evaluation of 314 patients was undertaken at a tertiary referral center of King Abdullah Medical City (KAMC), Makkah, Kingdom of Saudi Arabia, between 2010-2019. Patients who presented with thyroid swellings underwent ultrasonography and FNAC. If indicated, surgery was performed. The FNAC findings were compared to the final histopathological reports. Results: The findings for FNAC from our data set of 314 patients showed a sensitivity value of 79.8%, Original Article specificity of 82.1%, accuracy of 74.8%, positive predictive value of 74.8%, and negative predictive value of 85.9%. Conclusion: Our study showed that FNAC has high sensitivity and specificity in the initial evaluation of patients with thyroid nodules. When guided by ultrasonography, the accuracy can be markedly improved. Molecular markers once widely available can improve the diagnostic power of FNAC to be no less than the histopathologic evaluation of thyroid tissue.
to August 2020. Material and methods: The trial consisted of 82 patients with a single thyroid nodule who met the inclusion criteria. Our study included 82 cases involving 57 women and 25 men, with a female to male ratio of 2.28: 1. The age of the patients ranged from 16 to 65 years, and the mean age was 42.56 + SD 11. 60 years. Most patients reported in the 3rd and 4th decades, and then in the 5th and 2nd decades. The diagnostic performance of fine needle aspiration cytology (FNAC) in this study was 82.92%, sensitivity 88.09%, specificity 77.50%, and positive predictive value 80.43%. After collecting a detailed history, thorough examination, appropriate examination and informed consent, fine-needle aspiration cytology was performed in all cases by the same cytopathologist. The thyroid gland was operated on and the samples were examined by the same histopathologist. Statistical analysis was performed using the Statistical Program for Social Sciences (SPSS version 11). Results: One hundred and twenty-six patients entered the study, of whom 77 (61%) were women and 49 (39%) were men. The mean age was 26.9 ± 7.7 years. As many as 79.4% of patients complained about cosmetic effects, 39.7% for respiratory problems and 4.8% for olfactory problems. The cause of the doctor's claim was significantly related to the age and sex of the patients, as well as the experience of surgeons. Conclusion: FNAC is a key principle in the diagnosis of a single thyroid nodule as it is a safe, minimally invasive and costeffective diagnostic tool.
International journal of clinical and experimental medicine, 2013
The large number of patients that require fine needle aspiration biopsy (FNAB) to discriminate malignant from benign thyroid nodules is a practical problem especially in iodine deficient area. To obtain an ultrasound (US) score and for predicting malignant nodules and reduce the number of unnecessary and expensive FNAB. A total of 280 thyroid nodules observed from August 2009 to August 2011 that had underwent FNAB were evaluated by US for echogenicity, peripheral halo, microcalcifications and intranodular vascularity. showed that nodules with two ultrasonographic features (US score = 4) were characterized by a 67.9% sensitivity and a 87% specificity for prediction of malignant thyroid nodules. According to our data, we suggest FNAB for nodules with US score ≥ 4. The practical use of this US score may help reduce unnecessary and expensive FNAB especially in iodine-deficient areas.
Effect of nodule size on the reliability of fine-needle aspiration biopsy in thyroid nodules
Turkish Journal of Medical Sciences, 2014
Background/aim: To investigate the reliability of fine-needle aspiration biopsy (FNAB) in thyroid nodules and benign/malignant discrimination, particularly in large nodules. Materials and methods: A retrospective analysis of 1466 nodules in 402 patients with thyroid nodules who underwent thyroid surgery was made. The pathologic results of the thyroid nodules from preoperative FNAB and postoperative surgical pathology results were compared. Results: FNAB was found to be in accordance with the postoperative pathologic results. A concordance between the FNAB and postoperative pathologic results, particularly in nodules less than 3 cm in size, was detected. However, a similar finding was not detected in nodules larger than 3 cm in size. The rates, calculated without taking into consideration the nodule dimensions, were found to be: sensitivity, 47.65%; specificity, 93.98%; false-negative, 52.35%; and false-positive 6.02% Conclusion: In our experience, the false-negative rate of FNAB in nodules larger than 3 cm was high. Therefore, we have concluded that in the event of malignant FNAB, this rate is significant; however, in the event of benign FNAB, it should not be trusted too much.
International journal of clinical and experimental pathology, 2015
Via routinely used thyroid function tests, scintigraphy and ultrasonography (USG), important information is obtained in the clinical and diagnostic practice for thyroid nodules. However, the distinction between benign and malignant lesions cannot precisely be performed with these tests. Thyroid fine needle aspiration biopsy (FNAB) is considered the most reliable diagnostic method in the differentiation between benign and malignant thyroid nodules. It has recently been likely to perform aspiration from deeper nodules via the implemention of FNAB along with USG. Today, in cytopathological examination of thyroid FNAB, standardized Bethesda System for Reporting Thyroid Cytopathology (BSRTC) system is used. Here, FNAB was performed in 1096 patients with thyroid nodules in the Medical School of Selcuk University between January 2009 and July 2014. Patients consisted of 919 women and 177 men between 12 and 87 years of age. Evaluated via BSRTC, the results were classified as unsatisfactory,...
2020
AIM: To estimate suspect nodule for benign or malignant characteristics, and to verify cytological features of the node with the fine needle aspiration (FNA) under ultrasound. DESIGN: A total of 106 patients were analyzed. FNA biopsy was performed at outpatient clinic via ultrasound. Inform consent was signed for each patient. Preparation of procedure with local anaesthesia was made by assistant nurse. PROCEDURE: Parallel approach of ultrasound guided fine needle aspiration (USGFNA) was used for each patient. This approach allows the operator to observe needle penetration, location and pathway of the entire needle within the neck, thyroid and nodule, which remain visible on the monitor. As a side effect commonly noticed mild pain and dizziness were recorded. RESULTS: General findings: According the gender, 96 (90.5%) of them were women and 10 (9.5%) men. Median age was 47 ± 9 years. Cytological findings: 5 patients were with papillary carcinoma, 3 with Hurtle cell metaplasia, 1 foll...
Journal of Surgical Oncology, 2012
Background: Surgeon-performed ultrasonography (US) of thyroid nodules might serve as a potential therapeutic guide to designate accurate surgical or clinical intervention. Objective: To evaluate the diagnostic adequacy of surgeon-performed ultrasonography guided fine needle aspiration biopsy (FNAB) of thyroid nodules, the factors responsible for diagnostic adequacy and the impact of surgeon-performed US on treatment approach. Methods: Retrospective review of a single surgeon performed 621 US-guided FNABs without on-site cytological specimen assessment. Outside US findings were compared to the surgeon-performed US. Measured variables and outcomes for the study included diagnostic adequacy rates and the effects of detected differences between US reports on treatment variability. Results: Diagnostic adequacy rate of surgeon-performed US-guided FNAB was determined to be 94.52% without on-site specimen evaluation by cytologist. Non-diagnostic specimens occurred in 34 of 621 (5.48%) nodules. The differences detected between the outside US and surgeon-performed US altered invasive treatment algorithm in 30 (5.47%) patients. FNAB was avoided for 15 (2.7%) patients. Total thyroidectomy became the preferred surgical option in 15 (2.7%) patients after the discovery of additional nodules in the contralateral lobe. Conclusion: Surgeon-performed US offers clear clinical benefits in terms of diagnostic yield of FNAB with providing valuable additional data that might alter surgical treatment approach.