本文报告1例3岁女孩患双眼视网膜母细胞瘤,左眼行眼球摘除,右眼经 X 射线放射治疗,视网膜斑块消失且保留有用视力。但8年后右眼眶内发现肿物经活检证实为纤维肉瘤。用 X 射线放射及钴-60治疗后,病情仍在进展,1年后死亡。一般从放射治疗到发现肿物之间隔为2～30年, This paper reports a case of 3-year-old girl suffering from bilateral retinoblastoma, left eye line excision, right eye by X-ray radiotherapy, retinal plaque disappeared and retain useful vision. However, eight years later found the right eye orbital tumor biopsy confirmed by fibrosarcoma. With X-ray radiation and cobalt-60 treatment, the condition is still progressing, died after 1 year. Generally found from the radiation therapy to the tumor interval of 2 to 30 years,