title: Granulomatosis with polyangiitis (GPA) initially presenting as sigmoiditis with the later development of spontaneous subcapsular hematoma.
authors.affiliation: Department of Dermatology, University of California Irvine, Irvine, CA, USA. KAmber@UCI.edu.
authors.forename: Kyle T
authors.initials: KT
authors.lastname: Amber
authors.affiliation: Department of Internal Medicine, MacNeal Hospital, Berwyn, IL, USA.
authors.forename: Ann
authors.initials: A
authors.lastname: Bunyan
authors.affiliation: Department of Internal Medicine, Holy Cross Hospital, University of Miami, Fort Lauderdale, FL, USA.
authors.forename: John J
authors.initials: JJ
authors.lastname: Lee
authors.affiliation: Department of Gastroenterology, Veterans Administration, Kansas City, MO, USA.
authors.forename: Abhiram
authors.initials: A
authors.lastname: Duvvuri
mesh_terms: D003092:Colitis / Q000150:complications* / Q000175:diagnosis* / Q000000981:diagnostic imaging; D003113:Colonoscopy; D003937:Diagnosis, Differential; D017809:Fatal Outcome; D005260:Female; D014890:Granulomatosis with Polyangiitis / Q000150:complications* / Q000175:diagnosis* / Q000000981:diagnostic imaging; D006406:Hematoma / Q000150:complications* / Q000175:diagnosis* / Q000000981:diagnostic imaging; D006801:Humans; D007668:Kidney / Q000473:pathology*; D008875:Middle Aged; D049268:Positron-Emission Tomography; D014057:Tomography, X-Ray Computed