A case of intraductal apocrine carcinoma of the breast

Abstract

We report a rare case of intraductal apocrine carcinoma of the breast. The patient was a 33-year-old woman who complained of a mass in her right breast. An elastic hard mass with ill-defined margin, measuring 2.5 cm, in the A area was observed. Mammography showed a focal asymmetric density (FAD). US disclosed an irregular heterogeneous low echoic mass about 30 mm in size. CT and MRI image findings indicated intraductal spreading, and fine needle aspiration showed atypical cells. Core needle biopsy yielded ductal carcinoma in situ (DCIS) with apocrine metaplasia. A wide excision and sentinel lymph node biopsy was performed. Histological examination revealed an intraductal apocrine carcinoma which spread to 5 cm in diameter.