The scapula companion shadow.
Eight examples of a scapula companion shadow are reported, and the ability of these shadows to simulate disease is discussed. They are seen on erect chest radiographs and their occurrence is favored by the loss of soft-tissue thickness. They result from an unusual position of the scapula and may simulate pleural or soft-tissue lesions.
D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D003951:Diagnostic Errors; D006801:Humans; D008297:Male; D008875:Middle Aged; D011859:Radiography; D012540:Scapula / Q000000981:diagnostic imaging*