Results After histopathological examination, 12 cases were diagnosed as adencarcinoma, 6 poorly differentiated carcinoma, 4 squamaceous cell carcinoma, 2 malignancy celiothelioma and 2 unidentified in all 27 cases. 结果经组织病理学检查,诊断为腺癌12例,低分化癌6例,鳞癌4例,恶性胸膜间皮瘤2例,乳腺胸膜转移癌1例。