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作者用透射电镜观察了１４例瘤性浆膜腔积液，并与常规细胞学光镜检查进行了比较．结果，光镜诊断的胸腹膜转移性腺癌（ＡＣ）４例中，电镜证实其中３例为ＡＣ，１例为恶性间皮瘤（ＭＭ）；光镜诊断的９例ＭＭ中，电镜诊断其中７例为ＭＭ，２例为ＡＣ．电镜技术的应用为区别瘤性胸腹水中瘤细胞的组织起源提供了客观的依据，解决了常规细胞学检查对ＡＣ和ＭＭ鉴别诊断的困难，提高了ＭＭ细胞学诊断的准确性．
The authors observed 14 cases of tumorous serous effusions by transmission electron microscopy and compared them with conventional cytological light microscopy. RESULTS: Of the 4 cases of pleural and peritoneal metastatic adenocarcinoma (AC) diagnosed by light microscopy, 3 cases were AC and 1 case was malignant mesothelioma (MM). Electron microscopy was used to diagnose 7 cases of MM diagnosed by light microscopy. Example is MM and 2 cases are AC. The application of electron microscopy technology provides an objective basis for distinguishing the tissue origin of neoplastic cells in neoplastic hydrothorax and ascites, and solves the difficulty of differential diagnosis of AC and MM by routine cytological examination, and improves the accuracy of MM cytology diagnosis.