Anal Neoplasm

**Semantic type:** Neoplastic Process

**Definition:** A benign, premalignant, or malignant neoplasm that affects the anal canal or anal margin.

**Synonyms:** - Anal Neoplasms, Benign and Malignant - Anal Tumor - Anal Tumors - Anus Neoplasm - Neoplasm of Anus - Neoplasm of the Anus - Tumor of Anus - Tumor of the Anus