title: Spontaneous colonic perforation: a rare complication of collagenous colitis.
abstract: Collagenous colitis is a clinicopathologic syndrome characterized by chronic watery diarrhea and unique histopathologic features. Spontaneous colonic perforation in the setting of collagenous colitis is a highly unusual complication, with only three cases reported in the literature to date. We present a fourth case and propose a potential pathologic mechanism for acute colonic perforation in this patient population.
authors.affiliation: Dalhousie University Medical School, Halifax, NS, Canada.
authors.forename: Jonathan
authors.initials: J
authors.lastname: Cottreau
authors.affiliation: Dalhousie University Medical School, Halifax, NS, Canada.|Division of General Surgery, Queen Elizabeth II Health Sciences Centre, Halifax, NS, Canada.
authors.forename: Ryan
authors.initials: R
authors.lastname: Kelly
authors.affiliation: Dalhousie University Medical School, Halifax, NS, Canada.|Division of General Surgery, Queen Elizabeth II Health Sciences Centre, Halifax, NS, Canada.
authors.forename: Trevor
authors.initials: T
authors.lastname: Topp
authors.affiliation: Dalhousie University Medical School, Halifax, NS, Canada.|Department of Diagnostic Imaging, Queen Elizabeth II Health Sciences Centre, Halifax, NS, Canada.
authors.forename: Andreu
authors.initials: A
authors.lastname: Costa
authors.affiliation: Dalhousie University Medical School, Halifax, NS, Canada.|Division of Anatomical Pathology, Queen Elizabeth II Health Sciences Centre and Dalhousie University, 734a, MacKenzie Bldg, 5788 University Ave, Halifax, NS, B3H 1V8, Canada.
authors.forename: Emily R
authors.initials: ER
authors.lastname: Filter
authors.affiliation: Dalhousie University Medical School, Halifax, NS, Canada. thomas.arnason@nshealth.ca.|Division of Anatomical Pathology, Queen Elizabeth II Health Sciences Centre and Dalhousie University, 734a, MacKenzie Bldg, 5788 University Ave, Halifax, NS, B3H 1V8, Canada. thomas.arnason@nshealth.ca.
authors.forename: Thomas
authors.initials: T
authors.lastname: Arnason
mesh_terms: D046729:Colitis, Collagenous / Q000150:complications* / Q000000981:diagnostic imaging / Q000473:pathology; D003108:Colonic Diseases / Q000000981:diagnostic imaging / Q000209:etiology / Q000473:pathology; D005260:Female; D006801:Humans; D007416:Intestinal Perforation / Q000000981:diagnostic imaging / Q000209:etiology* / Q000473:pathology; D008875:Middle Aged; D000072663:Spontaneous Perforation / Q000000981:diagnostic imaging / Q000209:etiology* / Q000473:pathology; D014057:Tomography, X-Ray Computed
keywords: Colitis; Collagenous colitis; Fissure; Perforation