Accuracy of fine needle aspiration cytology in diagnosis of thyroid swelling.

ABSTRACT

Fine needle aspiration cytology is a well established, safe and out patient procedure used in diagnosis of thyroid swelling. Aims: The aim of this study is to determine the accuracy of FNAC in detection of thyroid lesions at our institute. Material and methods: 100 cases of thyroid swelling were diagnosed and treated at M.P.Shah medical college, Jamnagar from Jan1997 to May 1998. FNAC results were compared with final histopathological diagnosis. FNA results were classified as inadequate material, non-neoplastic, neoplastic and malignant lesions. Results: FNA analysis showed 74.19%(69 cases) non-neoplastic lesion, 19.35%(18cases) neoplastic lesion and 6.45%(6cases) malignant lesion. Histopathological analysis showed 70.18%(40) non-neoplastic lesion and 29.83%(17) neoplastic lesion – 15.79%(9) adenomas and 14.04%(8) carcinomas. Conclusions: The accuracy rate of FNAC in diagnosis for non-neoplastic, neoplastic and malignant lesions were 90.91%,100% and 100% espectively. So, overall accuracy of FNA in present study was 92.98%.