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目的 分析视网膜母细胞瘤的CT与MRI征象。方法 回顾性分析 15例经手术病理证实的视网膜母细胞瘤的CT与MRI表现。15例均行CT平扫 ,其中 7例配合MRI扫描。结果 CT显示 15例中伴有视网膜下积液 5例 ;钙化 14例 ;视神经增粗 2例。MRI显示 7例肿块均伴有视网膜下积液 ,其中 4例显示瘤内的致密钙化灶 ,1例显示视神经在T2WI呈高信号 ,增强扫描呈斑点状强化。结论 CT对肿瘤定性诊断具有重要意义 ,MRI显示肿瘤的大小、有无视网膜下积液及肿瘤的分期较CT优越。
Objective To analyze the CT and MRI features of retinoblastoma. Methods The CT and MRI findings of 15 cases of retinoblastoma confirmed by surgery and pathology were retrospectively analyzed. Fifteen patients underwent CT scan, of which 7 were matched with MRI scan. Results CT showed 15 cases with subretinal effusion in 5 cases; calcification in 14 cases; optic nerve thickening in 2 cases. MRI showed 7 cases of tumors were associated with subretinal fluid, of which 4 showed dense calcification within the tumor, 1 showed a high signal in the T2WI optic nerve, enhanced scan speckled enhancement. Conclusion CT is of great significance for the qualitative diagnosis of tumors. MRI shows the size of the tumor, the presence or absence of subretinal effusion and the staging of tumors superior to CT.