MONDO_0002519 (anus disorder) is a non-neoplastic or neoplastic disorder that affects the anal canal or anal margin. Representative examples of non-neoplastic disorders include hemorrhoids and anal ulcer. Representative examples of neoplastic disorders include carcinoma, lymphoma, and melanoma. Also known as: anal disease, anal disorder, anus disease, anus disease or disorder, disease of anus, disease or disorder of anus, disorder of anal region, disorder of anus.