本文报告两例临床上较少见的巨大胸膜间皮瘤。且在 X 光发现胸部肿块分别为15年和12年后,出现了明显的压迫症状后才手术,增加了手术的困难和危险性。故强调对于难以确诊的胸内孤立性肿块,宜早期手术探查。并对胸内巨大肿瘤切除时应注意的问题,进行了较详细的讨论。 This article reports two cases of clinically rare giant pleural mesothelioma. And after the X-ray findings of 15 and 12 years of thoracic masses respectively, there were obvious signs of compression before surgery, which increased the difficulty and risk of the operation. Therefore, it is emphasized that for difficult-to-diagnose cases of isolated lump in the chest, early surgical exploration should be performed. The problems that should be paid attention to when removing a large tumor in the chest were discussed in more detail.