Pulmonary alveolar microlithiasis.
D000328:Adult; D001706:Biopsy; D002137:Calculi / Q000000981:diagnostic imaging / Q000473:pathology; D006801:Humans; D008171:Lung Diseases / Q000000981:diagnostic imaging / Q000473:pathology; D008297:Male; D011650:Pulmonary Alveoli / Q000000981:diagnostic imaging / Q000473:pathology; D011859:Radiography