title: Virtual colonoscopy-induced perforation in a patient with Crohn's disease.
abstract: We report a case of sigmoid colon perforation in a patient with Crohn's disease undergoing computed-tomographic (CT) colonography. A 70-year-old patient with Crohn's disease with terminal ileitis and sigmoid stricture underwent CT colonography after incomplete conventional colonoscopy. During the procedure, the colon was inflated by air insufflation and the patient developed abdominal pain with radiological evidence of retroperitoneal and intraperitoneal free gas. Hartmann's operation was performed. This case highlights that CT colonography is not risk-free. The risk of perforation may be higher in patients with inflammatory bowel disease.
authors.affiliation: Institute of Degestive Desease, Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong, China.
authors.forename: Sunny H
authors.initials: SH
authors.lastname: Wong
authors.forename: Vincent W S
authors.initials: VW
authors.lastname: Wong
authors.forename: Joseph J Y
authors.initials: JJ
authors.lastname: Sung
mesh_terms: D000368:Aged; D023881:Colonography, Computed Tomographic / Q000009:adverse effects* / Q000379:methods; D003424:Crohn Disease / Q000473:pathology*; D006801:Humans; D007416:Intestinal Perforation / Q000175:diagnosis / Q000209:etiology*; D008297:Male; D012307:Risk Factors; D014057:Tomography, X-Ray Computed