adenomatous polyp

(redirected from polypoid adenoma)
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Noun1.adenomatous polyp - a polyp that consists of benign neoplastic tissue derived from glandular epithelium; "adenomatous polyps are visible protrusions that can develop on the mucosal surface of the colon or rectum"
polyp, polypus - a small vascular growth on the surface of a mucous membrane
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(10) Currently, flat adenomas are recognized as differing from polypoid adenoma in their malignant potential and genetic alterations during carcinogenesis.
(7) Differential diagnosis is leiomyoma, polypoid adenoma, aberrant pancreatic tissue, malignancy.
But NP-CRNs contained high-grade dysplasia or early colorectal cancer significantly more often than polypoid adenomas (16% vs.