title: Ossification in a benign rectal polyp.
authors.forename: M F
authors.initials: MF
authors.lastname: Castelli
authors.forename: J
authors.initials: J
authors.lastname: Roberts
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D007417:Intestinal Polyps / Q000473:pathology*; D009999:Ossification, Heterotopic / Q000473:pathology*; D012004:Rectal Neoplasms / Q000473:pathology*