label: colorectal neoplasm
label_lc: colorectal neoplasm
description: A benign or malignant neoplasm that affects the colon or rectum. Representative examples of benign neoplasms include lipoma and leiomyoma. Representative examples of malignant neoplasms include carcinoma, lymphoma, and sarcoma. Colorectal adenomas always exhibit epithelial dysplasia and are considered premalignant neoplasms.