鞍旁误诊病例的MRI分析

MRI analysis of Misdiagnosed Parasellar Lesions

目的：提高ＭＲＩ诊断鞍旁占位病变的正确性。材料和方法：回顾分析２１例少见及不典型的鞍旁占位病变的ＭＲＩ片，与手术病理对照。结果：２１例中，男女之比为８：１３，良性１１例，恶性１０例。定位全部正确，定性诊断均错误，其中完全误诊１３例，部分误诊８例。结论：笔者认为ＭＲＩ三维成像是定位诊断的必要前提，Ｇｄ－ＤＴＰＡ的应用有利于提高定性诊断的正确率。

To impove MRI diagnostic accuracy of parasellar lesions. Materials and Methods:We retrospectively analyzed MRI appearance, operative and pathological findings of 21 cases with atypical rare parasellar lseions.Results:Among the 21 cases, included the male: female ratio 8: 13,benign 11 cases, malignent 10 cases.All lesions were correctly localized, but with incorrect qualitative diagnosis. Thirteen of 21 cases were completely misdiagnosed and the remaining ones were partially misdiagnosed. Conclusion: With retrospective review of MRI, we concluded that three diamensioned MR imaging was important in locaiizing of parasellar lesions.Gd-DTPA injection was capable of inproving MRI diagnostic accuracy of the lesions.