title: Buttock abscess complicating Crohn's disease.
abstract: Two patients with buttock abscesses developing as an extension of Crohn's disease are described. In each, the abscess extended through the sciatic foramen into gluteal soft tissues. Cross-sectional imaging, particularly computed tomography, is of major help in identifying these lesions and the pathway of spread.
authors.affiliation: Department of Diagnostic Radiology, Henderson General Hospital, Hamilton, Ontario.
authors.forename: B P
authors.initials: BP
authors.lastname: O'Malley
authors.forename: T
authors.initials: T
authors.lastname: Minuk
authors.forename: M
authors.initials: M
authors.lastname: Castelli
mesh_terms: D000038:Abscess / Q000209:etiology*; D000328:Adult; D002081:Buttocks; D003424:Crohn Disease / Q000150:complications*; D005260:Female; D006801:Humans; D007077:Ileal Diseases / Q000209:etiology; D007416:Intestinal Perforation / Q000209:etiology; D008875:Middle Aged; D010388:Pelvis