Brodsky M C, Hoyt W F, Barnwell S L, Wilson C B
Department of Neurological Surgery, University of California, San Francisco.
J Neurosurg. 1988 Feb;68(2):300-2. doi: 10.3171/jns.1988.68.2.0300.
The authors describe the case of a young man who presented with a central scotoma in one eye and a temporal hemianopsia in the other. Magnetic resonance imaging showed distinctive bilobed thickening of the chiasm and a "potbelly" expansion of the contiguous optic nerves. The distal portions of the intracranial optic nerves appeared normal. At craniotomy, incision of the lamina terminalis exposed intraventricular craniopharyngioma with anterior extension into the chiasm and proximal optic nerves. Partial resection of the tumor restored normal vision.
作者描述了一名年轻男性的病例，该患者一只眼睛出现中心暗点，另一只眼睛出现颞侧偏盲。磁共振成像显示视交叉有独特的双叶增厚以及相邻视神经的“大肚皮”样扩张。颅内视神经的远端部分看起来正常。在开颅手术中，切开终板暴露了脑室内颅咽管瘤，其向前延伸至视交叉和近端视神经。肿瘤部分切除后视力恢复正常。
