[Differential diagnosis of microcalcifications, X-ray film analysis of 60 intraductal carcinoma, the triangle principle (author's transl)].

Roentgenological criteria of microcalcification in intraductal carcinoma were examined in 60 cases and verified by the "double-blind test". The triad polymorphy, dense colonization, triangle principle has proved to be of useful for the differential diagnosis.