[Conditions imitating malignant diseases of the female breast].

In spite of eminent position of mammary carcinoma as to its diagnosis and treatment in literature sources on mammary diseases, the benign diseases of this location are evidenced unless 3 times as frequent. Uncommon benign lesions of female mammary gland are reported through the period of 3 years. Differential diagnosis misinterpretations are emphasized which may occur even at well equipped institutions. Surgery and detailed histological examinations showed the final character of lesions. Of importance also is the provision of dispensary care. Factors listed which augment the biological capability of malignant reversal.