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分析肺癌性淋巴管播散的CT表现，讨论诊断与鉴别诊断以及CT检查对本病的诊断价值。材料和方法：分析问例肺癌性淋巴管播散的有关资料，原发灶12例是肺癌，正例原发灶不明。且11例有常规CT扫描，其中8例加作高分辨率CT（HRCT）扫描：另2例单作HRCT检查。结果：10例有支气管血管束增厚，大部分呈边缘不规则状。9例显现多为均匀的小叶间隔增厚。胸膜病变有叶间胸膜增厚（8例）、胸膜结节（3例）、胸水（4例）。心包积液4例。9例有胸内淋巴结肿大，其中7例累及肺门淋巴结。结论：常规CT加HRCT能清晰显示肺癌性淋巴管播散的影像学表现而有利于正确诊断。考虑到的鉴别诊断有胸部结节病、间质性肺水肿。
To analyze the CT features of lung cancer lymphatic dissemination, discuss the diagnosis and differential diagnosis, and the diagnostic value of CT examination for this disease. Materials and Methods: Analyze the relevant data of lung cancer lymphatic dissemination. The primary tumor was lung cancer in 12 cases, and the primary tumor was unknown. And 11 cases had routine CT scans, of which 8 cases were added as high-resolution CT (HRCT) scans: the other 2 cases were single-pass HRCT. Results: The bronchovascular bundles were thickened in 10 cases and most of them were irregular in shape. Nine cases showed mostly uniform interlobular septal thickening. Pleural lesions included interlobular pleural thickening (8 cases), pleural nodules (3 cases), and pleural effusion (4 cases). Pericardial effusion in 4 cases. Nine cases had enlarged chest lymph nodes, of which 7 involved hilar lymph nodes. Conclusion: Conventional CT plus HRCT can clearly show the imaging features of lymphatic dissemination in lung cancer and is conducive to correct diagnosis. The differential diagnoses considered include chest sarcoidosis and interstitial pulmonary edema.