癌性淋巴管病原信之等已知，肺脏除具有呼吸机能外，还是全身的血液滤过器。因而其他器官疾病的病变常在肺内出现，其中以恶性肿瘤肺转移最常见。这在Ｘ线胸片上常表现为结节性阴影，但也有象淋巴管病那样的线状索状阴影。后者必须同弥漫性肺疾患鉴别。本文结合本科病例对... It is known that the cancerous lymphatic vessels are believed to be pathogenic, and the lungs have a whole body hemofilter, in addition to their respiratory function. Therefore, lesions of other organ diseases often appear in the lungs, of which malignant lung metastases are the most common. This often shows nodular shadows on X-rays, but it also has linear cord-like shadows like lymphatics. The latter must be differentiated from diffuse lung disease. This article combines undergraduate cases with...