Gregorius F K, Crandall P H, Baloh R W
Surg Neurol. 1976 Nov;6(5):283-6.
The authors present two surgically verified cases of cerebellar astrocytoma extending into the fourth ventricular floor. Each patient presented with positional vertigo, and electronystagmography revealed positional nystagmus indicative of a central lesion. The findings in these cases emphasize the need of looking for positional nystagmus in patients with suspected posterior fossa lesions.
作者报告了两例经手术证实的小脑星形细胞瘤延伸至第四脑室底部的病例。每位患者均表现为位置性眩晕，眼震电图显示有提示中枢性病变的位置性眼震。这些病例中的发现强调了在疑似后颅窝病变患者中寻找位置性眼震的必要性。
