Results The sensitivity of CT scan in detecting PRN was 100%, while the accuracy in localization of the lesions and in qualitative diagnosis was 84.0% and 68.0%, respectively.

• 结果CT显示腹膜后原发肿瘤的敏感性为100%25,定位诊断正确率为84。0%25,良、恶性定性诊断率为68。0%25。