16层螺旋CT对腹膜后间质瘤的诊断价值

Diagnosis value of 16 slice spiral CT in retroperitoneal stromal tumor

目的:总结分析16层螺旋CT在腹膜后间质瘤诊断中的应用价值。方法:2012年6-11月收治腹膜后间质瘤患者15例,为研究对象,回顾分析其16层螺旋CT表现特征。结果:15例腹膜后间质瘤患者中,良性瘤2例,低度恶性潜能瘤3例,恶性瘤10例。15例患者CT表现均存在腹膜后软组织肿块,具体位置:上腹部6例,中下腹部9例;肿块直径范围3.1~25cm,平均(8.5±1.6)cm;肿块形状:类圆形4例,分叶状5例,无规则形状6例。CT平扫密度均匀5例,不均匀10例,半点状钙化2例,肿块内有出血3例。CT增强扫描均匀中度强化4例,不均匀强化2例,纵横交错轨道样强化6例,可见边缘及中心小血管3例。15例患者CT扫描均可见肿块周边和器官表现为离心性移位,累及邻近血管、肾上腺、输尿管,伴有腹水5例,肝转移2例,肺转移3例。结论:腹膜后间质瘤的螺旋CT表现特征明显,有利于间质瘤的快速诊断和鉴别诊断。

Objective:To analyze and summary the application value of 16 slice spiral CT in the diagnosis of retroperitoneal stromal tumor.Methods:15 cases with retroperitoneal stromal tumor were selected from June to November 2012.They were as the research objects.The performance characteristics of 16 slice spiral CT were retrospectively analyzed.Results:In the 15 cases with retroperitoneal stromal tumor,2 cases were benign tumor,3 cases were low potential of malignant tumor,and 10 cases were malignant tumor.The CT manifestations of 15 cases had retroperitoneal soft tissue mass.The specific location:6 cases were midsection,9 cases were middle and lower abdomen.The tumor diameter range was 3.1~25cm,and the average was 8.5±1.6cm.The lump shape:4 cases were quasi-circular,5 cases were lobular,6 cases were random shape.5 cases were CT scan density uniform,10 cases were nonuniform,2 cases were half a dotted calcification,3 cases were tumor with bleeding.4 cases were CT enhanced scan even moderate strengthening,2 cases were uneven reinforced,6 cases were crisscrossed rail sample reinforcement,3 cases were small blood vessels of edge and center.In the CT scan of 15 patients,there were visible around the mass and the organs in a centrifugal displacement,involvement of adjacent vascular,adrenal,ureter,5 cases were with ascites,2 cases were liver metastasis,3 cases were lung metastasis.Conclusion:The spiral CT performance characteristics of retroperitoneal stromal tumor is obvious.It is avail to rapid diagnosis and differential diagnosis of stromal tumor.