rectum adenoma rectal tubulovillous adenoma NCIT:C5620 UMLS:C1335691 A neoplasm that arises from the glandular epithelium of the rectal mucosa. It is characterized by tubular and villous architectural patterns. The neoplastic glandular cells have dysplastic features. MEDGEN:277578 rectal Villotubular adenoma SCTID:448428002 EFO:1000505 rectal tubulovillous adenoma tubulovillous adenoma of the rectum MONDO:0006395 Villotubular adenoma of rectum Villotubular adenoma of the rectum tubulovillous adenoma of rectum colorectal tubulovillous adenoma