title: Pulmonary alveolar microlithiasis in pediatric patients--review of the world literature and two new observations.
abstract: Report of two new pediatric cases of pulmonary alveolar microlithiasis (PAM). PAM is a rare disease of unknown etiology; not more than 38 cases have been reported aged less than 18 years. The essential features of this disease are (1) a characteristic radiographic appearance of a sand-like opacity of both lungs and linear densities like "beads on a string" along the heart, pleura and interlobar fissures; this is best visualized by fluoroscopy in combination with magnification technique; (2) extremely few clinical signs and almost no laboratory abnormalities.
authors.affiliation: Department of Pediatric Radiology, Children's Hospital KAVH Free University of Berlin, West.
authors.forename: E
authors.initials: E
authors.lastname: Volle
authors.forename: H J
authors.initials: HJ
authors.lastname: Kaufmann
mesh_terms: D002114:Calcinosis / Q000000981:diagnostic imaging*; D002648:Child; D005260:Female; D006801:Humans; D008171:Lung Diseases / Q000000981:diagnostic imaging*; D008297:Male; D011650:Pulmonary Alveoli / Q000000981:diagnostic imaging*; D011859:Radiography