颅底弥漫性腱鞘巨细胞瘤1例
Chinese Journal of Medical Imaging Technology（2018）
Abstract
患者男,54岁,因左耳听力下降偶伴耳痛2年余,耳痛加重入院。CT见左侧咽旁、颞下窝肿块,边界欠清,左侧颞骨鳞部、蝶骨大翼及翼突内外侧颅板骨质可见侵蚀性改变,左侧鼓室及乳突窦、乳突气房可见高密度影（图1A）。肿块在MRI表现为不规则团片状长T1短T2信号,内可见多发不规则囊状长T2信号,病灶边缘可见短T2信号（图1B）,DWI未见明显弥散受限。增强后左侧颞下间隙异常信号呈不均匀强化,病变边界不
MoreKey words
Skull,Giant cell tumor of tendon sheath,Diagnostic imaging
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