Pulmonary alveolar microlithiasis presenting with prolonged cough

A 40-year-old man had been followed in the pulmonary clinic for prolonged cough. Chest X-ray showed bilateral diffuse interstitial infiltrates with accentuation toward the bases. CT-scan demonstrated a fine diffuse reticulonodular pattern. Transbronchial lung biopsy showed pulmonary alveolar microlithiasis, a rare disease characterized by the presence of concentric calcifications within the pulmonary alveoli. This is the second case of the disease reported in Israel.