The shifting granuloma: an internal marker of atelectasis.
Many patients carry internal markers of pulmonary parenchymal anatomy: calcified granulomas. When such granulomas are present, their movement is a direct sign of significant parenchymal collapse.
D000368:Aged; D002114:Calcinosis / Q000000981:diagnostic imaging; D005260:Female; D006099:Granuloma / Q000000981:diagnostic imaging*; D006801:Humans; D008171:Lung Diseases / Q000000981:diagnostic imaging*; D008297:Male; D008875:Middle Aged; D001261:Pulmonary Atelectasis / Q000000981:diagnostic imaging*; D011859:Radiography