Hamada Hideo, Hayashi Nakamasa, Umemura Kimiko, Kurosaki Kunikazu, Endo Shunro
Department of Neurosurgery, Faculty of Medicine, University of Toyama, Toyama, Japan.
Neurol Med Chir (Tokyo). 2010;50(6):512-4. doi: 10.2176/nmc.50.512.
A 15-year-old boy presented with a case of middle cranial fossa arachnoid cyst associated with subdural effusion and manifesting as headache and vomiting after minor head injury. Computed tomography disclosed a cystic lesion in the left middle cranial fossa and ipsilateral subdural effusion. Fundoscopic examination revealed papilledema. A small tear of the cyst wall was confirmed endoscopically. Fenestration of the cyst was performed under the operating microscope. Postoperative course was uneventful. The tear in the outer wall of an arachnoid cyst may suggest the mechanism of occurrence of subdural effusion associated with middle cranial fossa arachnoid cyst.
一名15岁男孩，患有中颅窝蛛网膜囊肿并伴有硬膜下积液，在轻微头部受伤后出现头痛和呕吐症状。计算机断层扫描显示左中颅窝有一个囊性病变及同侧硬膜下积液。眼底检查发现视乳头水肿。经内镜证实囊肿壁有一小处撕裂。在手术显微镜下对囊肿进行了开窗引流。术后病程平稳。蛛网膜囊肿外壁的撕裂可能提示了与中颅窝蛛网膜囊肿相关的硬膜下积液的发生机制。
