A benign or malignant neoplasm that affects the colon. Representative examples of benign neoplasms include lipoma and leiomyoma. Representative examples of malignant neoplasms include carcinoma, lymphoma, and sarcoma. Colonic adenomas always exhibit epithelial dysplasia and are considered premalignant neoplasms. The disease is MONDO_0005401 (colonic neoplasm). Also known as: colon neoplasm, colon neoplasm (disease), colon tumor, colon tumour, colonic tumor, colonic tumour, neoplasm of colon, neoplasm of the colon.