Abstract

Introduction: Pulmonary alveolar microlithiasis is an important cause of diffuse parenchymal lung disease and is characterised by calculospherites in the alveolar spaces. Usually occurring in the 4th to 6th decade. Sex distribution is roughly equal. Clinical course is progressive and fatal. About 300 cases of pulmonary alveolar microlithiasis have been reported in literature. Case Report: Here we report a case of a 56­year­old male who presented with progressively increasing breathlessness. Imaging revealed characteristic “sandstorm” appearance on X­ray. A transbronchial lung biopsy confirmed the diagnosis of pulmonary alveolar microlithiasis. Conclusion: The etiology of pulmonary alveolar microlithiasis is unknown and there is no definite medical treatment. Hence, therapy is mostly empirical.

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