影像所见
- 右侧偏心顶盖区T1低信号、T2/FLAIR高信号病变,大小约1.5 x 1 x 1.5 cm
- 无对应强化或弥散受限
- 对大脑导水管产生占位效应,导致梗阻性脑积水及轻度室管膜下水肿
带注释的图像和插图
T1 hypointense tectal mass (red arrow) with associated obstructive hydrocephalus at the level of the cerebral aqueduct. A rim of normal parenchyma along its superior margin (yellow arrow) helps exclude a pineal origin of this particular mass.
诊断
顶盖胶质瘤
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