Pulmonary alveolar microlithiasis with low fluorodeoxyglucose accumulation in PET/computed tomography.

Pulmonary alveolar microlithiasis (PAM) is an uncommon lung disease characterized by accumulation of intraalveolar calcifications. The disease can be diagnosed based on the radiological findings. We present a 27-year-old women with five-year history of shortness of breath.