Pulmonary alveolar microlithiasis: high-resolution CT and MR findings.
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.
Hoshino
H
H
Third Department of Internal Medicine, Sapporo Medical University School of Medicine, Japan.
Koba
H
H
Inomata
S
S
Kurokawa
K
K
Morita
Y
Y
Yoshida
K
K
Akiba
H
H
Abe
S
S
D001706:Biopsy; D002114:Calcinosis / Q000175:diagnosis*; D006801:Humans; D008171:Lung Diseases / Q000175:diagnosis*; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D011650:Pulmonary Alveoli / Q000000981:diagnostic imaging* / Q000473:pathology*; D014057:Tomography, X-Ray Computed / Q000379:methods*