MRI对垂体柄阻断综合征的诊断价值

Application Value of MRI in the Diagnosis of Pituitary Stalk Interruption Syndrome

目的探讨MRI对垂体柄阻断综合征的诊断价值。方法回顾性分析16例垂体柄阻断综合征患者的MRI表现及临床资料。结果 MRI显示16例患者中13例表现为垂体柄缺如,3例垂体柄明显变细;11例患者垂体窝后部正常垂体后叶T1WI高信号消失,但在第三脑室漏斗隐窝底部或正中隆起处可见高信号的结节;16例患者均表现为垂体前叶明显变薄。结论垂体柄阻断综合征的MRI表现具有特征性,有助于提高术前诊断的准确性。

Objective To investigate the application of MRI in the diagnosis of Pituitary Stalk Interruption Syndrome（PSIS）. Methods MRI features and clinical data of 16 PSIS patients were analyzed retrospectively. Results On the MR imaging, the pituitary stalks were absent in 13 cases, pituitary stalks were obviously thinner in 3 cases. The high signal intensity of normal posterior pituitary in the back of the pituitary fossa were disappeared in 11 cases, but nodules with high signal intensity were found in the infundibular recess bottom or the median eminence of the third ventricle. Anterior pituitary were obviously thinner in all cases. Conclusion PSIS patients have certain MRI features, which are helpful in improving the accuracy of the preoperative diagnosis.