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室管膜瘤的发病仅占颇内肿瘤1.2～3.53%。我院自1984年10月～1990年10月共收治12例。1例因剂量不足不计在内。现就11例患者的放疗方式和预后提一些看法。 1 临床资料:11例中男6例、女5例。年龄9～67岁,中位35岁。病灶位于幕上(第三照室)2例,幕下第四脑室4例。余5例分别位于大脑额叶、顶叶、枕叶。全部病例均经手术证实病理,且有CT或MRI明确占位。Ⅱ级5例,Ⅱ级6例。1例随访3年3个月失访。均随访至1991年10月。11例全部用8MV-X线放疗。Ⅲ级病人全脑放疗3000～4000cGy,然后缩野局部追加剂量在5700～6000cGy。Ⅱ级病人均采用局部照射,剂量除1例为4783cGy,余均在5000～6000cGy。11例病人无1例作全脊髓预防照射。 2 结果:存活5年以上者4例。3年3个月一例(失访
The incidence of ependymoma only accounted for quite within the tumor 1.2 ~ 3.53%. Our hospital since October 1984 ~ October 1990 were treated 12 cases. 1 cases due to insufficient dose excluded. Now 11 patients with radiotherapy and prognosis to raise some views. 1 clinical data: 11 cases of 6 males and 5 females. Aged 9 to 67 years old, the median 35 years old. Lesions were located in the screen (third photo room) in 2 cases, the fourth screen in the fourth room. The remaining five cases were located in the frontal lobe, parietal lobe, occipital lobe. All cases were confirmed by surgery pathology, and CT or MRI clear placeholder. Ⅱ grade in 5 cases, Ⅱ grade in 6 cases. One case was followed up 3 years 3 months lost. All patients were followed up until October 1991. All 11 cases were treated with 8MV-X radiotherapy. Grade Ⅲ patients with whole brain radiotherapy 3000 ~ 4000cGy, and then reduce the local additional dose of 5700 ~ 6000cGy. Ⅱ grade patients were treated with local irradiation, except one dose of 4783cGy, the remaining in 5000 ~ 6000cGy. None of the 11 patients had full spinal cord irradiation. 2 Results: Survival of more than 5 years in 4 cases. Three years and three months a case (lost