CT findings in 31 cases of primary retroperitoneal neoplasm (PRN) were analyzed to evaluate the diagnostic value of imaging examination in PRN.

• 通过分析31例腹膜后肿瘤的CT表现，探讨CT对腹膜后肿瘤的定位及定性诊断价值，结果CT的定位准确率为94%25，良性与恶性肿瘤的大小无显著差异(P＞0.；05)。