原发性腹膜后肿瘤 ( primaryretroperionealtumor,PRT)术后复发率高 ,但部分病人仍有再次或多次切除的机会。本文报告 2例。1　病历简介例 1.病人男 ,73岁。 14年前检查发现腹膜后巨大肿瘤行首次手术治疗。术中见肿瘤巨大且与周围组织器官关系紧密 ,未能切除。病理报告 :腹膜后 The primary retroperitoneal tumor (PRT) has a high recurrence rate, but some patients still have the possibility of resection or multiple resections. This article reports 2 cases. 1 medical records brief introduction 1. Patient male, 73 years old. 14 years ago found the first retroperitoneal large tumor resection surgery. Surgery, see the huge tumor and the surrounding tissues and organs close, failed to remove. Pathology report: retroperitoneal