Case Report of 74-Year-Old Female with Microcystic Adnexal Carcinoma, a Rare and Locally Invasive Neoplasm, with Multiple Recurrences and Review of the Literature

Microcystic adnexal carcinomas (MAC) are a very rare form of locally invading neoplasms. This paper reports a case of a 74-year-old female diagnosed with a MAC neoplasm localized to the left upper cheek; she was treated with both surgery and radiotherapy. The patient had two recurrences after surgical excisions with the second excision being coupled with radiotherapy. This report asses the rarity of this disease, which may lead to misdiagnosis, and the optimal treatment to minimize the possibility of known high recurrence rates. MAC is not considered a highly metastatic neoplasm; however, potential for metastasis exists, as discussed in this case.