湖北省肿瘤医院于1975～1985年间对2511例鼻咽癌患者进行放射治疗。2511例随访中发现明显放射性脑损伤症状及体征者计11例。放射性脑损伤发病率为0.4％。本文报告此11例。 所有病例均经病理证实,并曾以远距离~(60)钴体外放疗,取两耳前野,野大小为6×7～6×8cm。野上缘位于颅底线上2～3cm处,鼻咽靶区剂量约7000cGy/7～8周。放 Hubei Provincial Cancer Hospital conducted radiotherapy for 2,511 patients with nasopharyngeal carcinoma from 1975 to 1985. Among the 2511 cases that were found to have obvious radiation brain injury symptoms and signs, 11 cases were counted. The incidence of radiation-induced brain injury was 0.4%. This article reports this 11 cases. All cases were confirmed by pathology, and had long-distance 60 cobalt in vitro radiotherapy, taking two ears before the wild, the size of the wild 6 × 7 ~ 6 × 8cm. The upper margin of the wild is located 2 to 3 cm above the skull base, and the dose of the nasopharyngeal target area is about 7000 cGy/7 to 8 weeks. put