众所周知低剂量头颅照射致脑膜瘤,但高剂量照射后发生脑膜瘤者报道不多。作者回顾分析了10 例高剂量头颅照射(>2000CGY)后发生脑膜瘤的病例。8例是从一个单位的500例脑膜瘤中证明曾接受过高剂量照射,据此可;得出发病率为1.6％。另2例来自别处。8例经组织学诊断,2例据临床及X线诊断。年龄1.5～16岁,女性8例,男性2例。放疗原因最多者为成神经管细胞瘤。3例有多发性脑膜 It is well-known that meningioma is caused by low-dose head irradiation, but few cases of meningioma occur after high-dose irradiation. The authors retrospectively analyzed the incidence of meningioma in 10 high-dose cephalometric (> 2000 CGY) patients. Of the 500 cases of meningiomas in one unit, eight had been exposed to high doses of radiation, according to which the incidence was 1.6%. The other 2 cases came from elsewhere. Eight cases were histologically diagnosed, and two cases were diagnosed clinically and X-ray. Age 1.5 to 16 years old, 8 females, 2 males. The most common cause of radiotherapy is medulloblastoma. Three cases had multiple meninges