原发性腹膜后肿瘤的MSCT诊断

CT diagnosis of primary retroperitoneal tumors

目的探讨原发性腹膜后肿瘤的CT诊断价值。方法搜集22经手术病理证实的原发性腹膜后肿瘤,分析其影像表现。6例作CT平扫,16例作CT平扫及增强检查。结果22例中良性肿瘤5例,恶性肿瘤17例。CT正确定位19例(86.4%),正确定性10例(45.5%)。结论CT能对原发性腹膜后肿瘤定位、定性诊断提供影像学依据,定位优于定性。

Objective To evaluate the CT diagnosis of primary retroperitoneal tumors（PRNs）. Methods The imaging appearances were analyzed in 22 cases of PRNs proved by operation and pathology. Plain and enhanced CT scans were perfomed on 16 cases,and only plain CT scans on 6 cases. Result 5 cases out of 22 were benign tumor and the rest were malignant ones. 19 cases of the mass（86.4%） were correctly localized by CT before operation.Correctly qualitative diagnosis of the tumors was made with CT in 10 cases（45.5%） before operation. Conclusion CT scans provides informations of PRNs on both position and characteristics before operation,but the location is better to the qualitative diagnosis for the tumors.