[Intracytoplasmic inclusions within cells of the breast and their diagnostic significance (author's transl)].

There were 700 tissue biopsies of the breast with and without carcinomas examined simultaneously by intraoperative histology and imprint cytology. In 20.2% of the cases with carcinoma the tumor cells showed peculiar intracytoplasmic inclusions, whereas in only 0.43% of the biopsies of the mamma without carcinoma such inclusions were to be found. Their morphologic variation and the histochemical pattern are discussed. It is pointed out that these intracytoplasmic inclusions may be a helpful histopathologic feature in the diagnosis of breast cancer.