1概述腹膜后软组织肉瘤约占软组织肉瘤的15%。最常见的是脂肪肉瘤,其次是平滑肌肉瘤和纤维肉瘤。无论对初次就诊还是复发的病人,主要的治疗方式是手术完整切除肿瘤,即肉眼上彻底切除肿瘤,并且尽可能达到镜下切缘阴性。手术完整切除可显著提高存活率[1-3]。由于就诊时,病人症状 An overview of retroperitoneal soft tissue sarcoma about 15% of soft tissue sarcoma. The most common are liposarcoma, followed by leiomyosarcoma and fibrosarcoma. Regardless of the initial visit or recurrence of patients, the main treatment is the complete surgical resection of the tumor, the complete removal of the tumor on the naked eye, and as far as possible to reach negative margins under the microscope. Surgical resection can significantly improve the survival rate [1-3]. As a result of treatment, the patient symptoms