【摘要】 目的探讨颅咽管瘤的MRI影像学表现,评价其诊断价值。方法回顾性分析59例经手术病理证实的颅咽管瘤的MRI表现。结果59例颅咽管瘤患者,40例(67.8%)病灶位于鞍上,16例(27.1%)位于鞍内,3例(5.1%)位于鞍旁,视神经受压、变形、移位51例,垂体正常显示32例,垂体受压变小15例,垂体未显示12例。肿瘤的信号在T2WI上多呈混杂高信号,而T1WI上可有高、等、低等多种表现。结论MRI可清楚显示鞍区肿瘤与周围结构,其多信号变化反映了肿瘤囊液成分的不同,MRI是诊断颅咽管瘤的有效方法。更多还原

【Abstract】 Objective To investigate manifestations of craniopharyngioma on MRI, as well as to evaluate its clinical role. Methods 59 patients who had been proven craniopharyngioma were reviewed for their MRI findings. Results Among the 59 patients, 40(67.8%) had their lesions situated on suprasellar, 16(27.1%) on intrasellar, 3 (5.1%) on parasellar. 51 had their optical nerve compressed, deformed or moved. 32 patients had their pituitary normally displayed and 12 not displayed. 15 patients showed shrunk pituitary due to compression. On T2WI the lesions showed confounding hyperintensities and on T1WI the lesions might be hyper-, hypo- or iso- intensities. Conclusion MRI is able to clearly display structures and surroundings of the craniopharyngioma. The diversified intensities vary with contents inside the tumor cyst. MRI is an effective way to diagnosing craniopharyngioma.更多还原