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目的 探讨腹膜后原发肿瘤MRI诊断价值。方法 回顾性总结17例腹膜后原发肿瘤,对照手术病理结果,分析MRI影像特征。结果 MRI定位定性诊断正确率各为82.4％(14/17)和76.5％(13/17);手术切除率为58.8％(10/17)。未完全切除肿瘤的MRI表现为:轮廓不规则57.1％(4/7),瘤体偏大42.9％(3/7),包膜不全71.4％(5/7),大血管和重要器官被侵犯85.7％和51.1％(6/7和4/7);骨、淋巴结和筋膜转移分别占28.6％(2/7)。结论MRI对于腹膜后原发肿瘤定位定性诊断及指导手术方面有重要价值。
Objective To investigate the diagnostic value of MRI in primary retroperitoneal tumors. Methods Retrospectively summarized 17 cases of retroperitoneal primary tumors, and compared their operative features with MRI features. Results The correct diagnostic accuracy of MRI localization was 82.4% (14/17) and 76.5% (13/17) respectively; the surgical resection rate was 58.8% (10/17). The MRI manifestations of incompletely resected tumors were: irregular profile 57.1% (4/7), large tumor size 42.9% (3/7), incomplete envelope 71.4% (5/7), large vessels and vital organs were violated. 85.7% and 51.1% (6/7 and 4/7); bone, lymph node and fascia metastasis accounted for 28.6% (2/7) respectively. Conclusion MRI is of great value for the qualitative diagnosis and guiding surgery of primary retroperitoneal tumors.