title: A case of systemic polyarteritis nodosa involving bronchial artery.
abstract: Polyarteritis nodosa (PAN) is a systemic necrotizing vasculitis involving predominantly medium-sized muscular arteries. It commonly involves skin, kidney, cardiovascular system, gastrointestinal system, and neurological system. But bronchial artery involvement of PAN is rarely identified. We report a case of PAN with initial presentation of hemoptysis. On admission, chest radiograph and chest CT angiography revealed no focus of bleeding. Angiography showed a bronchial artery aneurysm and multiple arterial aneurysms in both renal, hepatic, mesenteric and branches of small bowel arteries. These findings were compatible with the diagnosis of PAN. The patient was started on steroid and cyclophosphamide.
authors.affiliation: Division of Respiratory and Critical Care Medicine, Department of Internal Medicine and Lung Institute, Seoul National University Hospital, Seoul, Republic of Korea.
authors.forename: Y J
authors.initials: YJ
authors.lastname: Lee
authors.forename: S S
authors.initials: SS
authors.lastname: Park
authors.forename: S Y
authors.initials: SY
authors.lastname: Kim
authors.forename: J Y
authors.initials: JY
authors.lastname: Lee
authors.forename: H K
authors.initials: HK
authors.lastname: Koo
authors.forename: H I
authors.initials: HI
authors.lastname: Yoon
mesh_terms: D000328:Adult; D000783:Aneurysm / Q000000981:diagnostic imaging; D001981:Bronchial Arteries / Q000473:pathology*; D003520:Cyclophosphamide / Q000008:administration & dosage; D006469:Hemoptysis / Q000209:etiology; D006801:Humans; D007166:Immunosuppressive Agents / Q000008:administration & dosage; D008297:Male; D008638:Mesenteric Arteries / Q000000981:diagnostic imaging; D010488:Polyarteritis Nodosa / Q000000981:diagnostic imaging / Q000188:drug therapy / Q000473:pathology*; D011859:Radiography; D012077:Renal Artery / Q000000981:diagnostic imaging
chemical_list: D007166:Immunosuppressive Agents; D003520:Cyclophosphamide