[Results of needle aspiration cytology in proliferative fibrocystic disease of the breast (author's transl)].

The accuracy of needle aspiration cytology in fibrocystic disease of the breast was evaluated in 101 cases with microscopically proved proliferative fibrocystic disease. The morphology of the obtained cytosmears was described. In about 50% of the cases a cytological diagnosis of proliferating fibrocystic disease is possible with accuracy. The needle aspiration is therefore a new method for intensive follow-up of patients with a high risk of develop carcinoma of the breast. The accuracy is increased in cases with well developed proliferation of the glandular cells. In cases with intraductal and intracystic proliferations, the results were better than in cases with adenosis.