胸部结节病的CT表现及其诊断价值

（1）目的 探讨胸部结节病CT的特异性与诊断价值。（2）方法 回顾性分析17例经病理组织学检查确诊的胸部结节病的CT表现。（3）结果 CT显示14例两侧肺门、纵隔广泛性对称性淋巴结增大。增大淋巴结度密度均匀，边界清楚，无浸润性改变，增强扫描呈中度均匀性强化。9例显示肺实质异常，其中6例兼有淋巴结增大。典型改变为沿支气管血管束分布的微结节（4例）、小结节（7例）和肺间质纤维化（2例）。（4）结论 胸部结节病的CT表现具有相对特异性。

THE DIAGNOSTIC VALUE OF THE CT FINDINGS IN THORACIC SARCOIDOSIS

Objective To evaluate the diagnostic value of CT findings in thoracic sarcoidosis. Methods The CT features were reviewed in 17 patients with histologically proved thoracic sarcoidosis. Results Fourteen patients had widespread symmetric lymph node enlargement in bilateral hili and mediastinum on CT scan. The individual enlarged lymph node had homogeneous density, well defined margins, there was no adjacent infiltrative and uniform moderate enhancement. Nine patients had pulmonary parenchymal abnormality at CT, 6 of 9 patients had lymph node enlargement simultaneously. The most frequent CT features were granular density (4 cases), nodules (7 cases) and interstitial fibrosis (2 cases) located along the bronchovascular bundles. Conclusion The CT features of thoracic sarcoidosis are relatively specific.