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

Ann Thorac Med. 2011 Oct;6(4):237-40. doi: 10.4103/1817-1737.84781.

Abstract

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. She was diagnosed with PAM due to the presence of the characteristic chest X-ray and thorax computed tomography (CT) findings. We performed (18)F-fluorodeoxyglucose (FDG)-PET/CT imaging in order to detect any evidence of inflamation in the lung before deciding an anti-inflammatory treatment. The lung regions with dense calcifications revealed low FDG uptakes (SUVmax: 2.7) and the lung regions without calcifications showed lower FDG uptakes. No further treatment modality was planned besides inhaler salbutamol. Herein, we discuss this rare entity with literature search.

Keywords: FDG; PET/CT; inflammation; pulmonary alveolar microlithiasis.

Publication types

  • Case Reports