[Clinical symptoms of cancer and precancerous diseases of the breast].

Data of the examination of 143 patients with limited forms of cancer and benign tumors of the mammary gland have been analysed. Mention is made of certain difficulties in establishing the differential diagnosis of such tumors based only on the clinical symptoms. The tumorigenesis may be established by using some accessory diagnostic methods: a cytological test of the tumor punctate and the breast nipple discharge, as well as a sectorial resection of the involved mammary gland portion with an express histological analysis of the preparation. Mammography aids to precisely determine the tumor size. Clinically, the true proliferation of the tumor is difficult to recognize, but it may be recognized after radical mastectomy and histological investigation of the whole preparation.