视网膜母细胞瘤(网母瘤)是发生于网膜的恶性肿瘸,大部分是在3岁以内的乳幼儿发病,成人罕见。发生率无种族和性别差异。在日本全国调查中,占出生人口的1/15000。双、单眼发生比为1:26,家族性发病占4.4%。初诊时,平均年龄双眼病例为6.7个月,单眼病例为24.4个月。本肿瘤对放射线敏感性高,以放射线治疗为主的保存眼球疗法,于1918年开始。现在不管双、单眼,如 Retinoblastoma (cytoma) is a malignant lamectomy that occurs in the omentum, most of which occur in infants and young children within 3 years of age and are rare in adults. There is no race and gender differences in incidence. In Japan’s national survey, the birth of the population accounted for 1/15000. Double, monocular ratio was 1:26, familial onset accounted for 4.4%. At first visit, the mean age was 6.7 months in both eyes and 24.4 months in monocular cases. The tumor is highly sensitive to radiation, radiation therapy-based preservation of eye therapy, began in 1918. Now regardless of double, monocular, such as