title: Quadrilateral space syndrome: a rare cause of shoulder pain.
abstract: The authors report a case of quadrilateral space syndrome in a baseball pitcher. The diagnosis was made by means of subclavian arteriography performed with the arm in abduction and external rotation. This entity is a rare cause of shoulder pain caused by occlusion of the posterior humeral circumflex artery in the quadrilateral space.
authors: Department of Diagnostic Radiology and Nuclear Medicine, Rush-Presbyterian-St. Luke's Medical Center, Chicago, IL 60612.
authors: P J
authors: PJ
authors: Cormier
authors: T A
authors: TA
authors: Matalon
authors: P M
authors: PM
authors: Wolin
mesh_terms: D000328:Adult; D000792:Angiography; D001158:Arteries / Q000473:pathology; D001265:Athletic Injuries / Q000150:complications* / Q000000981:diagnostic imaging; D003251:Constriction, Pathologic; D012090:Cumulative Trauma Disorders / Q000150:complications / Q000000981:diagnostic imaging; D006801:Humans; D008297:Male; D009408:Nerve Compression Syndromes / Q000000981:diagnostic imaging*; D010146:Pain / Q000209:etiology*; D000070599:Shoulder Injuries; D012785:Shoulder Joint / Q000098:blood supply / Q000000981:diagnostic imaging