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Acta Medica Colombiana
Print version ISSN 0120-2448
Abstract
VALLEJO GARCIA, Franco Javier; VALLEJO GARCIA, Alejandro and PARRA, Maximiliano. Pulmonary alveolar microlithiasis. Acta Med Colomb [online]. 2007, vol.32, n.4, pp.223-226. ISSN 0120-2448.
Pulmonary alveolar microlithiasis (PAM) is a rare disease characterized by the diffuse and bilateral presence of calcium phosphate microlite in the alveolar spaces. The progression of this potentially lethal disease is show and most of the patients remain asymptomatic during years or decades, resulting in a show deterioration of the pulmonary function. The typical finding of the "sand storm" in the chest X-ray is characteristic of this entity. Mutations in the SLC34A2 gene that does the coding for the type II co-transporter of sodium phosphate were identified as responsible for this disease. Of the almost 600 cases, only 6 have been reported in Colombia. We are presenting a case of pulmonary alveolar microlite in a 27 year old man, with progressive respiratory distress whose diagnosis was made by the X-ray findings and confirmed by trans bronchial biopsy. In the 2 years follow-up, shows evolution towards deterioration of his respiratory function making him a candidate for lung transplantation.
Keywords : pulmonary alveolar microlithiasis; interstitial pulmonary disease; microlites; diffuse calcipherites.