title: Villous adenoma presenting as a vaginal polyp in a rectovaginal tract.
abstract: A 72-year-old woman had a villous adenoma of endodermal derivation involving the rectovaginal septum and contiguous mucosal surfaces that presented clinically as a vaginal polypoid tumor. To explain the vaginal involvement, we postulate that the adenoma traversed a tract of developmental origin within the rectovaginal septum. This is the first report of such a unique constellation of findings.
mesh_terms: D000236:Adenoma / Q000473:pathology*; D000368:Aged; D004707:Endoderm / Q000473:pathology; D005260:Female; D006801:Humans; D011127:Polyps / Q000473:pathology*; D012004:Rectal Neoplasms / Q000473:pathology*; D014625:Vaginal Neoplasms / Q000473:pathology*