title: Silent rectal perforation after endoscopic polypectomy: CT features.
abstract: A case of silent extraperitoneal rectal perforation secondary to colonoscopic polypectomy is presented. Computed tomography (CT) demonstrated pathways of gas diffusion from the perirectal site to different compartments of the retroperitoneum, to the mediastinum and peritoneum.
authors.affiliation: Department of Diagnostic Radiology, Allegheny General Hospital, Pittsburgh, Pennsylvania 15212.
authors.forename: B D
authors.initials: BD
authors.lastname: Nguyen
authors.forename: I
authors.initials: I
authors.lastname: Beckman
mesh_terms: D000368:Aged; D003113:Colonoscopy / Q000009:adverse effects*; D005260:Female; D006801:Humans; D007416:Intestinal Perforation / Q000000981:diagnostic imaging* / Q000209:etiology; D007417:Intestinal Polyps / Q000601:surgery*; D012004:Rectal Neoplasms / Q000601:surgery*; D012007:Rectum / Q000000981:diagnostic imaging / Q000293:injuries*; D014057:Tomography, X-Ray Computed