[Lipid-secreting carcinoma of the breast]

Lipid secreting carcinoma is a very rare tumor of the breast. This is regarded as a special type of breast carcinoma, which is characterized by abundant intracytoplasmic neutral lipid stained with Sudan IV. Two cases (75 and 42 year old females) of lipid secreting carcinoma of the breast are presented. No other reports of lipid secreting carcinoma have been available in the Japanese literature. In this report, the physical, mammographic and ultrasonographic diagnosis and pathological findings are described and discussed.