Abstract: | An analysis of the own material and of literature data permits to note alterations in the clinical course of mammary gland tuberculosis, which is the manifestation of tuberculosis pathomorphism under modern conditions. The lesion of the mammary gland is most commonly an isolated disease. This interferes with the differential diagnosis between tuberculous mastitis and tumors of the mammary gland and supports the opinion that the spreading of infection from other old tuberculous foci via hematogenic path plays the main part in the pathogenesis of tuberculosis of the mammary gland. |