Shimbo Daisuke, Kato Tsutomu, Takeda Makoto, Ikeda Hitoshi
Department of Neurosurgery, Hakodate Central Hospital, Hokkaido.
Neurol Med Chir (Tokyo). 2011;51(11):793-7. doi: 10.2176/nmc.51.793.
A 10-year-old boy presented with an intraparenchymal meningioma, which had no attachment to the dura, manifesting as grand-mal seizure. Neurological examination showed no abnormalities. Magnetic resonance (MR) imaging revealed a round, well demarcated mass in the left frontal lobe, which was homogeneously enhanced. The tumor appeared to be intraaxial and caused marked peritumoral white matter edema. At operation, the mass was totally embedded in the frontal lobe and gross total resection was accomplished. The histological diagnosis was meningothelial meningioma with chordoid components in World Health Organization grade I. His postoperative course was uneventful and postoperative MR imaging revealed no residual tumor. Intraparenchymal meningioma should be considered in the differential diagnosis of an intraaxial lesion in a child.
一名10岁男孩因脑实质内脑膜瘤就诊，该肿瘤与硬脑膜无附着，表现为全身性癫痫发作。神经系统检查未发现异常。磁共振成像显示左额叶有一个圆形、边界清晰的肿块，呈均匀强化。肿瘤似乎位于脑实质内，导致明显的瘤周白质水肿。手术中，肿块完全包埋在额叶内，实现了全切除。组织学诊断为世界卫生组织I级的脑膜内皮型脑膜瘤伴脊索样成分。他的术后过程顺利，术后磁共振成像显示无残留肿瘤。儿童脑实质内病变的鉴别诊断应考虑脑实质内脑膜瘤。
