A Case of Secretory Carcinoma of the Breast in an 88-year-old Woman

Abstract

An 88-year-old woman presented to our hospital with a right breast tumor and pain in the D area. The patient was diagnosed with invasive ductal carcinoma upon examination. Partial resection was performed. Histopathological examination revealed that the cancer cells were mainly secretory carcinoma with a microcystic pattern, having a micro-vesicular structure similar to that of thyroid follicles, and a tubular pattern with a luminal-like structure that stored secretions. Secretory carcinoma was initially reported as juvenile breast carcinoma ; however, a few reports found that even older people are diagnosed with secretory carcinoma. No treatment has been developed for this histological type. In this case, treatment was performed according to the breast cancer treatment protocol, and the prognosis was relatively good.