患者信息:
3 岁, 男性
检查指征:
言语困难，平衡障碍
影像所见
- 左侧大脑半球不均匀肿块，大小约5.3 x 5 x 6 cm
- 相应不均匀强化伴匹配的扩散受限区域
- 内在T1信号增高区域，尤其沿肿块深部边缘
- 周围血管源性水肿和相关占位效应导致局部脑沟消失、左侧侧脑室受压、中线向右偏移10 mm
- 左侧侧脑室颞角梗阻
带注释的图像和插图
Heterogeneously enhancing mass in the left cerebral hemisphere (red arrow) with associated local mass effect and midline shift.
Areas of internal restricted diffusion (red arrow) corresponding with the enhancing components, indicative of hypercellularity.
Area of T1 signal hyperintensity along the deep margin of the tumor (red arrow), likely representing tumor-related hemorrhage.
诊断
非典型畸胎样/横纹肌样肿瘤（AT/RT）
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