Li Qiang, You Chao, Zan Xin, Chen Ni, Zhou Liangxue, Xu Jianguo
Department of Neurosurgery, West China Hospital of Sichuan University, Chengdu, PR China.
J Child Neurol. 2012 Feb;27(2):211-7. doi: 10.1177/0883073811415681. Epub 2011 Dec 21.
Mature cystic teratoma (dermoid cyst) inside the Sylvian fissure is rare. A 14-year-old boy presented with 2 episodes of generalized tonic-clonic seizures. Using a fat-suppressed, T1-weighted sequence, magnetic resonance imaging revealed a hypointense nonenhancing mass in the left Sylvian fissure. He underwent left pterional craniotomy for total tumor resection. The pathological diagnosis was mature cystic teratoma (dermoid cyst). Headache and seizures are the leading symptoms. Cyst rupture causes inflammation of cholesterol crystals, and the cyst contents may cause seizure. Surgical resection is the treatment of choice, but radical resection is not advised if critical neurovascular structure can be injured.
大脑外侧裂内的成熟囊性畸胎瘤（皮样囊肿）很罕见。一名14岁男孩出现两次全身性强直阵挛发作。磁共振成像采用脂肪抑制T1加权序列，显示左侧大脑外侧裂有一个低信号、无强化的肿块。他接受了左翼点开颅术以全切肿瘤。病理诊断为成熟囊性畸胎瘤（皮样囊肿）。头痛和癫痫发作是主要症状。囊肿破裂会导致胆固醇结晶炎症，囊肿内容物可能引发癫痫。手术切除是首选治疗方法，但如果可能损伤关键神经血管结构，则不建议进行根治性切除。
