obsolete_Hyperplastic Polyp true http://purl.obolibrary.org/obo/MONDO_0006249 Replaced by Mondo term MONDO_0006249, with which this term was previously merged. Use: http://purl.obolibrary.org/obo/MONDO_0006249 MedDRA:10073705 A polyp found mainly in the stomach and colon. Microscopically, it is characterized by elongated, serrated crypts lined by proliferative epithelium. Hyperplastic polyps are traditionally considered non-neoplastic, but ras mutation is common, clonality has been demonstrated and biochemical abnormalities and epidemiological associations that occur in colorectal adenomas and carcinomas have been found (WHO Tumors of the Digestive System, 2000). 3.88.0 NCIt:C4083