Conclusion Calcified plaque inside tumor was characteristic of CT findings in RB patients.CT and clinical features are helpful for the early diagnosis and differential diagnosis of retinoblastoma.

• 结论CT检查发现钙化灶是视网膜母细胞瘤的特徵性改变，CT改变与临床特徵相结合可为视网膜母细胞瘤的早期诊断和鉴别诊断提供客观依据。