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Case Report. Pulmonary Alveolar Microlithiasis: High-Resolution CT and MR Findings

1998; Lippincott Williams & Wilkins; Volume: 22; Issue: 2 Linguagem: Inglês

10.1097/00004728-199803000-00016

1532-3145

Hideaki Hoshino, Hiroyuki Koba, Shin-Ichiroh Inomata, Keizo Kurokawa, Yuji Morita, Kazuhiro Yoshida, Hidenari Akiba, Shosaku Abe,

Superconducting Materials and Applications

We report the high-resolution CT (HRCT) and MR findings in a case of pulmonary alveolar microlithiasis. HRCT revealed that the black pleural line on a chest radiograph was caused not by subpleural cysts but by a fat-dense layer between ribs and the calcified parenchyma. MRI showed both lower zones with diffusely increased signal intensity on T1-weighted images. We speculated it was caused by the accumulation of small-sized calcific particles.