Hoshino H, Koba H, Inomata S, Kurokawa K, Morita Y, Yoshida K, Akiba H, Abe S
Third Department of Internal Medicine, Sapporo Medical University School of Medicine, Japan.
J Comput Assist Tomogr. 1998 Mar-Apr;22(2):245-8. doi: 10.1097/00004728-199803000-00016.
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.
我们报告了一例肺泡微石症的高分辨率CT（HRCT）和MR表现。HRCT显示，胸部X线片上的黑色胸膜线并非由胸膜下囊肿引起，而是由肋骨与钙化实质之间的脂肪致密层所致。MRI显示两个下肺区在T1加权图像上信号强度弥漫性增加。我们推测这是由小尺寸钙化颗粒的积聚引起的。
