title: A concomitant case of giant cell arteritis and microscopic polyangiitis with hemoperitoneum by rupture of the gastroepiploic artery.
abstract: Giant cell arteritis (GCA) mainly involves large-sized arteries, while microscopic polyangiitis (mPA), characterized by pauci-immune necrotizing vasculitis, mainly affects small-sized vessels. We report a very rare concomitant case of GCA diagnosed by temporal artery biopsy and mPA with a high titer of myeloperoxidase antineutrophil cytoplasmic antibody, exacerbation of interstitial pneumonia, and suspected rapidly progressive glomerulonephritis. The patient died by sudden rupture of the gastroepiploic artery (medium-sized vessel), which may have been triggered by GCA and/or mPA.
authors.affiliation: Center for Rheumatic Disease, Iizuka Hospital, Iizuka, Fukuoka, Japan. fujii-kenji@sawara-hp.jp
authors.forename: Kenji
authors.initials: K
authors.lastname: Fujii
authors.forename: Tomomi
authors.initials: T
authors.lastname: Tsutsumi
authors.forename: Kensuke
authors.initials: K
authors.lastname: Takaoka
authors.forename: Yasuhiro
authors.initials: Y
authors.lastname: Osugi
authors.forename: Satoshi
authors.initials: S
authors.lastname: Ando
authors.forename: Yoshinobu
authors.initials: Y
authors.lastname: Koyama
mesh_terms: D000369:Aged, 80 and over; D017809:Fatal Outcome; D024405:Gastroepiploic Artery / Q000473:pathology*; D013700:Giant Cell Arteritis / Q000150:complications* / Q000473:pathology; D006465:Hemoperitoneum / Q000150:complications* / Q000473:pathology; D006801:Humans; D008297:Male; D055953:Microscopic Polyangiitis / Q000150:complications* / Q000473:pathology; D012422:Rupture, Spontaneous / Q000150:complications / Q000473:pathology