摘要
目的探讨肺泡微结石的高分辨率CT(HRCT)表现及其诊断价值。方法回顾性分析4例肺泡微结石患者的临床和CT资料。结果 4例均表现为两肺沿胸膜下及支气管血管束弥漫对称分布的细小钙化结节,中下肺野及肺外带分布较密集,病灶直径约1~2 mm,边缘清楚锐利。部分结节融合形成薄层沿胸膜下的致密带。肺外缘与侧胸壁之间可见多发小气囊影排列成行。4例均有双肺程度不同的肺间质纤维化改变,表现为不规则的条状和网状影。纵隔窗见密集结节融合的片状高密度钙化影沿胸膜下排列,内侧缘模糊且不规则,向肺内延伸,密度逐渐变淡如"火焰状"。3例伴肺动脉高压,右心室增大。结论肺泡微结石具有特征性的HRCT表现。
Objective To investigate the HRCT features of pulmonary alveolar calculi and its diagnostic value. Methods Clinical and CT data of 4 cases of pulmonary alveolar calculi were retrospectively analyzed. Results Four cases showed two lung along the pleura and bronchovascular bundles filled symmetrically distributed small calcified nodules, in the middle and lower lung field and in the lung periphery distribution more intensive, the diameter of le- sions about 1~2 mm, the edge is clear and sharp. A dense band of thin layer along the pleural in some nodules. Be- tween the outer lateral chest wall and lung shows multiple small balloon shadow lined. Four cases had double lung fi- brosis changes, which showed irregular shape and reticular shadow. The dense nodules in the mediastinal window are arranged in a patchy high density calcification. The medial edge is fuzzy and irregular, and extends to the lung. The density is gradually fading as ＂flame＂. Three cases with pulmonary hypertension, right ventricular enlargement. Conclusion The HRCT features of pulmonary alveolar calculi are characteristic.
出处
《实用医学影像杂志》
2017年第2期129-131,共3页
Journal of Practical Medical Imaging
