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目的分析研究眼球变小的视网膜母细胞瘤的CT特点。方法选择38例经手术病理证实的单侧视网膜母细胞瘤患者。所有病例行眼球CT容积扫描,对每例患者的双侧眼球体积进行测量。对26例眼球变小的视网膜母细胞瘤的CT特点进行分析研究。结果 26例单侧视网膜母细胞瘤患眼体积较健眼小,约占单侧视网膜母细胞瘤的68.4%。患眼体积变小与年龄有明显相关性,年龄越小患眼体积变化越明显;病变钙化量与眼球体积缩小率无明显相关性。结论眼内期视网膜母细胞瘤也可发生眼球体积变小的情况,采用CT测量眼球体积可准确反映眼球体积变小情况。
Objective To analyze the CT features of retinoblastoma with diminished eyeball. Methods 38 patients with unilateral retinoblastoma confirmed by surgery and pathology were selected. All patients underwent CT scans of the eye, and the bilateral ocular volume of each patient was measured. The CT features of 26 cases of retinoblastoma with diminished eye were analyzed. Results The volume of unilateral retinoblastoma in 26 patients was smaller than that of healthy eye, accounting for 68.4% of unilateral retinoblastoma. The smaller the affected eye, the smaller the age. The younger the affected eye, the more obvious the changes of the eye volume. The lesion calcification and the eyeball volume reduction rate were not significantly correlated. Conclusion Intraocular retinoblastoma may also occur when the size of the eyeball becomes smaller. Using CT to measure the volume of the eyeball can accurately reflect the smaller eyeball volume.