%0 Journal Article %A Alia S. Al-Alawi %T Familial occurrence of pulmonary alveolar microlithiasis in 3 siblings %D 2006 %J Saudi Medical Journal %P 238-240 %V 27 %N 2 %X Pulmonary alveolar microlithiasis (PAM) is a rare disease of unknown etiology characterized by intra-alveolar calcium deposits. More than 500 cases were reported in the literature. The disorder affects people at every age beginning from the early childhood. It occurs probably as a result of autosomal recessive transmission. Familial occurrence is often found with family history of the disease being present in up to 50% of the reported cases. We report PAM in 3 siblings. %U https://smj.org.sa/content/smj/27/2/238.full.pdf