Abstract
Adenoid cystic carcinoma of the breast is classified into the special type of breast cancer. It is a rare neoplasm and accounts for less than 0.1% of all breast cancers. In this paper, we present a case of adenoid cystic carcinoma of the breast in a male patient that is rarer.
A 36-year-old man presented to our hospital because of a painful tumor of the left nipple. Breast ultrasonography revealed a 24-mm diameter tumor with accelerated blood flow just under the left nipple. The imaging findings indicated the diagnosis of left inflammatory breast tumor, but we conducted excision biopsy because his pain was severe and diagnosed the tumor as adenoid cystic carcinoma. Following general exploration, we performed left modified radical mastectomy with axillary lymph node dissection. The final diagnosis was pT2 (24mm) pN0M0, stage IIA, and it was an estrogen receptor (ER), progesterone receptor (PgR), and Human epidermal growth factor receptor 2 (HER2) negative tumor (triple negative breast cancer). We did not conduct particular adjuvant therapy and followed his clinical course. No recurrence has occurred as of 18 months after the operation.
