disease has location villous adenoma rectum adenoma rectal villous adenoma MEDGEN:152675 NCIT:C4919 rectum villous adenoma villous adenoma of the rectum A neoplasm that arises from the glandular epithelium of the rectal mucosa. It is characterized by a villous architectural pattern. The neoplastic glandular cells have dysplastic features. rectal villous adenoma SCTID:312823001 UMLS:C0730199 villous adenoma of rectum EFO:1000506 MONDO:0006396 rectum