这是一例不寻常的病例报告:一位加拿大男性,31岁,直升机飞行员,总飞行时间为1800h。他在手术切除治疗神经管胚细胞瘤5年后申请恢复现役飞行。1987年末,他找当地航空医生诉说有新近头痛、眼震和进行性平衡功能丧失。随后,脑CT显示:中线小脑肿瘤,后来确诊为神经管胚细胞瘤。在进行了外科手术后,又接受了一个疗程的放射治疗,没有后遗症。他身 This is an unusual case report: a Canadian man, 31, a helicopter pilot with a total flight time of 1800h. He applied for resumption of active duty after 5 years of surgical resection for the treatment of neuroblastoma. In late 1987, he asked a local aviation doctor about new headaches, loss of nystagmus and progressive balance. Subsequently, brain CT showed a midline cerebellar tumor that was later diagnosed as a neuroblastoma. After a surgical operation, they received another course of radiation therapy without sequelae. His body