title: Spontaneous perirenal hematoma due to Wegener's granulomatosis after initiation of immunosuppressant.
abstract: Spontaneous perirenal hematoma (SPH) is a rare, life-threatening condition. We present a patient with Wegener's granulomatosis (WG) who developed SPH soon after the initiation of immunosuppressant therapy. Few cases of SPH as a complication of WG have been reported, though a rupture of an aneurysm in patients with polyarteritis nodosa can lead to SPH. Though immunosuppressant therapy is considered to be the first-line therapy for SPH with vasculitis, SPH could still occur after the initiation of an adequate treatment regimen.
authors.affiliation: Division of Allergy, NHO, Osaka-Minami Medical Center, 2-1 Kidohigashi-machi, Kawachinagano, Osaka, Japan. ishiit@imed3.med.osaka-u.ac.jp
authors.forename: Taeko
authors.initials: T
authors.lastname: Ishii
authors.forename: Yoshinori
authors.initials: Y
authors.lastname: Katada
authors.forename: Yukihiko
authors.initials: Y
authors.lastname: Saeki
mesh_terms: D001379:Azathioprine / Q000627:therapeutic use*; D005260:Female; D014890:Granulomatosis with Polyangiitis / Q000150:complications* / Q000175:diagnosis / Q000188:drug therapy; D006406:Hematoma / Q000175:diagnosis / Q000209:etiology* / Q000628:therapy; D006801:Humans; D007166:Immunosuppressive Agents / Q000627:therapeutic use*; D007674:Kidney Diseases / Q000175:diagnosis / Q000209:etiology* / Q000628:therapy; D008875:Middle Aged; D011239:Prednisolone / Q000627:therapeutic use*; D014057:Tomography, X-Ray Computed
chemical_list: D007166:Immunosuppressive Agents; D011239:Prednisolone; D001379:Azathioprine