Harada M, Morioka T, Nishio S, Fukui M
Department of Neurosurgery, Faculty of Medicine, Kyushu University.
No Shinkei Geka. 1991 Jan;19(1):89-92.
We report a case of a 7-year-old right-handed girl with neurocytoma in the left frontal lobe. She developed convulsive seizures on the right side of her face at the age of 1 year and 8 months, and CT scan revealed a low density lesion in the left frontal lobe near the Sylvian fissure. CT scan at the age of 7 years showed slight enlargement of the lesion in size, and linear calcification in the mass. MRI imaging revealed the lesion to be a solid mass involving the area of Brodmann 44 of the left cerebral hemisphere. However, amytal test disclosed that her speech center was not situated in the left cerebral hemisphere. Subtotal removal of the tumor and removal of the epileptogenic focus were performed and no neurological deficits including speech disturbance resulted. The tumor was diagnosed as neurocytoma by electron microscopy. Because this tumor was considered of low malignancy, no radiation or chemotherapy was given. It is emphasized that neurocytoma can occur in parts of the brain other than in the ventricular system, though the incidence of the tumor is more frequent in the latter.
我们报告一例7岁右利手女孩，患有左侧额叶神经细胞瘤。她在1岁8个月时出现右侧面部抽搐发作，CT扫描显示左侧额叶靠近外侧裂处有一个低密度病变。7岁时的CT扫描显示病变大小略有增大，肿块内有线性钙化。MRI成像显示该病变为一个实性肿块，累及左侧大脑半球的布罗德曼44区。然而，阿米妥试验显示她的语言中枢并不在左侧大脑半球。对肿瘤进行了次全切除并切除了致痫灶，未出现包括言语障碍在内的神经功能缺损。通过电子显微镜检查，肿瘤被诊断为神经细胞瘤。由于该肿瘤被认为恶性程度较低，未进行放疗或化疗。需要强调的是，神经细胞瘤可发生于脑室系统以外的脑区，尽管该肿瘤在脑室系统中更为常见。
