CORELATION OF  FNAC AND HISTOPATHOLOGY IN THE STUDY OF THYROID LESIONS.

DR.K.SUNIL KUMAR; DR.G BALESWARI; DR.TAMIL ARASI

Volume : V, Issue : VI, June - 2016

CORELATION OF FNAC AND HISTOPATHOLOGY IN THE STUDY OF THYROID LESIONS.

Dr. K. Sunil Kumar, Dr. G Baleswari, Dr. Tamil Arasi

Abstract :

 Objective : FNAC is the first line screening tool for evaluation of thyroid lesions. It helps in early detection and proper management of thyroid lesions and helps to reduce unwanted surgeries. Methods – One year retrospective and 2 years prospective study undertaken in the department from August-2010 to July-2013. The study comprised 605 patients, who present with history of swelling of thyroid. Results – Among 605 FNAC cases 75 %, were non-neoplastic thyroid lesions, out of which 33 % were goiters, 29 % Hashimoto�s thyroiditis, Neoplastic lesions comprised 25 %, out of which 23.4 % were benign and 1.6 % were malignant , 23.4 % of benign lesions were reported as atypical (or) follicular neoplasm (or) suspicious of malignancy. Histopathological examination of thyroid specimen was specially advocated for these lesions. In out study 288 cases had cyto histopathological correlation. All the 123 cases reported as goiters on cytology were reported as nodular or adenomatoid goiter on histopathology, with 100 % cyto histopathological correlation. Cases reported as toxic hyperplasia and Hashimoto�s thyroiditis on cytology were consistent with the histopathological diagnosis.Out of 47 cases of colloid cyst reported on cytology, 45 were colloid cyst, 2 were follicular adenoma with cystic change and 2 were papillary carcinoma. 71 cases reported as atypical or follicular neoplasm were confirmed histopathologically as follicular adenoma in 58 cases, hurthle cell adenoma in 3 cases, follicular carcinoma in 6 cases, follicular variant of papillary carcinoma in 3 cases, medullary carcinoma in 1 case. There was 100 % cytohistopathological correlation in cases of papillary carcinoma, medullary carcinoma and anaplastic carcinoma.