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患者男,50岁。因头痛、头晕、呕吐、行走不稳2个月余伴双眼视力下降,加重2 d 就诊。神经科检查:双侧视乳头轻度水肿,Babinski 征、Hoffmann 征均阳性。影像检查:MRI 示中线后颅窝小脑蚓部一不均匀实性肿块,直径约4.3 cm×5.8 cm,T_1WI 呈等信号、T_2WI 呈稍高信号,瘤内可见小斑片状 T_1WI、T_2WI 高信号影,肿块边缘较清
Male patient, 50 years old. Due to headache, dizziness, vomiting, walking unsteadiness with binocular vision more than 2 months, increased 2 d treatment. Neurological examination: bilateral papillary mild edema, Babinski sign, Hoffmann sign were positive. Image examination: MRI showed a non-uniform solid mass in the vermis of the posterior fossa of the midline. The diameter was about 4.3 cm × 5.8 cm. T_1WI was equal signal, T_2WI was slightly higher signal. Small patchy T_1WI, T_2WI high signal Shadow, lumps clearer edge