Dysplasia-Associated Lesion or Mass

**Semantic type:** Finding

**Definition:** A term that refers to raised and dysplastic large intestinal lesions in patients with a history of ulcerative colitis. Grossly, these lesions present as polyps, plaques, or patches in areas affected by ulcerative colitis. The presence of these lesions is associated with the development of adenocarcinomas. Colectomy is indicated when they are detected.

**Synonyms:** - DALM - Dysplasia-Associated Large Intestinal Lesion or Mass