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本文作者报告自1986年以来收治延髓肿瘤10例,其中室管膜瘤2例、星形细胞瘤Ⅱ级者2例、成胶质细胞瘤1例、海绵状血管瘤3例、成血管细胞瘤2例.手术采用枕下正中切口,骨窗开颅.一般骨窗外达乳突,下至枕骨大孔.用高速气钻切除第1或第2颈椎椎弓.对因肿瘤生长致脑脊液流通障碍引起的脑室扩大、脑压增高者,术前放置侧脑室后角引流装置,调节压力.Y形切开硬脑膜后开放小脑延髓池,放出脑脊液,必要时可将小脑蚓部向上牵开或将其下方切开1.5cm,以利显露.外生性生长的星形细胞瘤由第四脑室底部向背侧生长,将其
The authors report 10 cases of medulla oblongata treated since 1986, including 2 cases of ependymoma, 2 cases of astrocytoma II, 1 case of glioblastoma, 3 cases of cavernous hemangioma, 1 hemangioblastoma. In 2 cases, the operation was performed with a suboccipital median incision and the craniotomy of the bone window. Generally, the mastoid process out of the bony window, down to the foramen magnum. The first or second cervical spine was removed with a high-speed pneumatic drill. The circulation of cerebrospinal fluid was impaired due to tumor growth. Caused by expansion of the ventricles, increased brain pressure, preoperative placement of lateral ventricle posterior horn drainage device, adjust the pressure. Y-shaped incision after opening the cerebellar medullary pool, release cerebrospinal fluid, if necessary, the cerebellar vermis can be pulled up or to Cut 1.5 cm below for easy exposure. Exogenously grown astrocytoma grows from the bottom of the fourth ventricle to the dorsal