Microcystic Adnexal Carcinoma

**Semantic type:** Neoplastic Process

**Definition:** A low-grade adenocarcinoma with ductal differentiation, arising from the sweat glands. It presents as a scar usually in the face. It is characterized by the formation of small ducts and it frequently involves nerves and perineural spaces.

**Synonyms:** - Eccrine Epithelioma - MAC - Microcystic adnexal carcinoma - Syringomatous Carcinoma - Syringomatous carcinoma