鞍区胶质瘤的MRI诊断
Chinese Journal of CT and MRI（2008）
Abstract
目的 探讨鞍区胶质瘤的MRI特点及临床发病特点. 方法经手术病理证实的鞍区胶质瘤7例,回顾性分析其MRI表现. 结果鞍区胶质瘤在MRI上的表现有以下特点:①肿瘤体积较大,分叶状,多无瘤周水肿;②囊实性或实性,囊性部分常位于肿瘤前下部,实性部分内多见散在小囊变区;⑦T1WI上肿瘤呈稍长或长T1信号,T1WI上呈稍长和长T2信号,增强后肿瘤明显强化.此外,患者就诊时多有眼部症状,而无下丘脑及垂体内分泌异常症状.结论 鞍区胶质瘤具有比较典型的MRI特点,结合其临床发病特点,有助于提高术前正确诊断率.
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Key words
glioma,magnetic resonacnce imaging,sellar turcica,astrocytoma
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