颅咽管瘤的MRI诊断

目的　评价MRI诊断颅咽管瘤的价值。方法　回顾性分析 5 2例颅咽管瘤的MRI表现 ,并与病理比较。结果　 37例( 71.2 % )的颅咽管瘤位于鞍上。颅咽管瘤囊液的MRI信号在T2 加权像上一般呈较均一的高信号 ,而在T1加权像上则呈低、等、高等多种表现 ,反映了囊液内不同病理成分的存在。结论　直接的多维成像能力及敏感的信号变化 ,使MRI成为诊断颅咽管瘤的有效方法

MRI Diagnosis of Craniopharyngiomas

Objective To evaluate the value of MRI in diagnosis of craniopharyngiomas. Methods MRI findings of 52 craniopharyngiomas were analyzed retrospectively and correlated with pathology.Results 37 cases of all 52 cases craniopharyngiomas were located on suprasellar. Craniopharyngioma fluid collections were found to be uniformly hyperintense on T 2-weighted images. However, on T 1-weighted images, the signal intensity of the fluid ranged from hypointense to hyperintense, reflecting the presence of pathological contents in these tumors. Conclusion MRI is an effective method in diagnosis craniopharyngioma due to its direct multiplanar capabilities and sensitive signal changes.