Fine needle aspiration of breast lesions : ten years experience

Abstract EN

330 fine needle aspiration cytologies (FNA) of breast lesions performed during a ten year period , from 1992 to 2002 , at the Pathology Department and Surgical Teaching Hospital were studied .

The cytological diagnosis were compared with the results of the histological examination of the same lesions and statistically evauated .

Most of cytologically false negative (22%) and inadquate cases (6%) were found in clinical stage VI, while most of suspicious cases were found in clinical stage I (50%).

The sensitivity of the present study was 93% .

while specificity was 100% .

The overall accuracy rate was 70% in the whole study .

Positive predictive value for carcinomas was 100% , negative predictive value for absence of carcinima was 86% and efficiency of the test was 95% .

The agreement between cytological and histological typing of malignant tumors was 95% in infiltrating , 35% in medullary carcinoma and 100% in cytosarcoma phyllodes .

While in beingn lesions , it was 100% in granulomatous mastitis 86% in fibrocystic disease , 90% in breast abscess and 95% in fibrodenoma .

The agreement between cytological and histological grading of infiltraing duct carcinoma cases was 78%.