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肺癌胸膜转移出现恶性胸腔积液是晚期肺癌的重要标志。根据1997年国际抗癌联盟(UICC)制定的最新肺癌分期标准,凡是胸腔膜受侵、出现恶性胸腔积液者即为肺癌Ⅲ_b期。由于肿瘤结节侵犯浆膜引起激惹和过量液体形成;肿瘤细胞阻塞淋巴臂降低了重吸收;肿瘤侵犯血管或肿块压迫使静脉受阻,脏层胸膜流体静压升高;大量游离的肿瘤细胞和肿瘤坏死碎屑的存在,胸腔内胶体渗透压升高;这些单个或多个因素的存在,致使恶性胸液增长迅速,临床症
Malignant pleural effusion of lung cancer pleural metastasis is an important indicator of advanced lung cancer. According to the 1997 International Union Against Cancer (UICC) to develop the latest lung cancer staging criteria, any chest invasion, malignant pleural effusion that is lung cancer stage Ⅲ_b. As the tumor nodules infringe the serosal cause irritation and excessive fluid formation; tumor cells blocking the lymphatic arm reduces reabsorption; tumor invasion of blood vessels or lump compression venous obstruction, visceral pleural fluid hydrostatic pressure increased; a large number of free tumor cells and Tumor necrosis of the presence of debris, intrapleural colloid osmotic pressure increased; the existence of these single or multiple factors, resulting in the rapid growth of malignant pleural effusion, clinical