AIDS-Related Malignant Anal Neoplasm

**Semantic type:** Neoplastic Process

**Definition:** A malignant neoplasm arising from the anus and occurring in HIV-positive patients. Representative examples include squamous cell carcinoma and non-Hodgkin lymphoma. Homosexual HIV-positive men have an increased risk of developing such malignancies in comparison to the general male population.

**Synonyms:** - AIDS-Related Malignant Anal Tumor - AIDS-Related Malignant Neoplasm of Anus - AIDS-Related Malignant Neoplasm of the Anus - AIDS-Related Malignant Tumor of Anus - AIDS-Related Malignant Tumor of the Anus