[Two cases of malignant mesothelioma controlled by pleurectomy].

Open biopsy and pleurectomy were performed in 2 cases of asbestos exposure with bloody pleural effusion. Pathological examination revealed marked proliferation of fibrous tissue containing tumor cells. The tumor was diagnosed as malignant pleural mesothelioma on the basis of histochemical staining and transmission electron microscopy. Almost complete excision of tumor tissue was performed, and malignant mesothelioma had not relapsed 10 and 12 months after the operation. We recommend open biopsy and pleurectomy for cases of exposure with bloody and intractable pleural effusion.