CT对原发性腹膜后肿瘤的定位诊断

CT Localizable Diagnosis of Primary Retroperitoneal Tumors

目的：探讨ＣＴ对原发性腹膜后肿瘤的定位诊断价值。材料与方法：收集我院１１例经手术及病理证实的原发性腹膜后肿瘤的ＣＴ表现结果。１１例均做了增强前、后扫描。回顾性分析腹膜后肿瘤的病变特点。结果：根据腹膜后肿瘤的病理类型、解剖分布、病灶形态、大小及密度，病灶与周围器官、血管及周围脂肪间隙的关系，判断其来源部位。结论：ＣＴ检查能准确反映病变部位、范围及相邻结构的关系，判断肿瘤是否来自腹膜后组织，做到定位诊断准确。由于其病变缺少特异性，ＣＴ对其定性诊断有一定限度，但对其良、恶性判断有一定帮助。

Abstract PURPOSE:to evaluate the value of the CT localizable diagnosis of primary retroperitoneal tumors.MATERIALS AND METHODS:CT appearance of cases of primary retroperitoneal tumors which confirmed at surgery were collected and patho-histology.All cases were scaned before and after enhancement.RESULTS:To determine the location of tumors by their pathoeogic types,anatomic distribution,the shape of the lessions,sizes and densities,the relations between tumors and adjacent organs,vessels,fatty spaces.CONCLUSION:CT can determine the tumors locations sizes,relations between tumors and adjacent structures. There is some limitation with CT qualitative diagnosis because of the lack of specialty of lessons.But CT is helpful to differencate that tumors are benign or malignant,and it's a imperative radiological examination before surgery.