视网膜母细胞瘤的CT和临床表现分析

Analysis of CT findings and clinical features of retinoblastoma

目的分析视网膜母细胞瘤的CT钙化特征和临床表现。方法 对60例63眼视网膜母细胞瘤的临床表现和CT钙化特征进行分析,单个钙化的最大直径<4 mm者描述为斑点状,>4mm者描述为斑块状。结果视网膜母细胞瘤以眼压升高、白瞳征、眼底黄白色隆起性肿块和新生血管等为主要眼征。钙化率为93.6％,不规则斑块状钙化46眼,其中>4 mm、<10 mm的不规则斑块状钙化33眼;散在及孤立的小斑点状钙化13眼。结论CT提示视网膜母细胞瘤的钙化表现较为特征,对于非典型者,CT与临床表现相结合有助于鉴别诊断。

Objective To analyse the CT findings and clinical features of retinoblastoma. Methods The CT findings and clinical features of retinoblastoma in 63 eyes of 60 patients were analysed retrospectively. The calcification with maximal diameter less than 4 mm was described as spot calcification, and that larger than 4 mm was described as plaque calcification. Results The main ophthalmologic signs of retinoblastoma consisted of elevation of intraocular pressure, white-pupil sign, yellow-white mass in fundus and new blood vessels on the surface of the mass. The rate of calcification was 93.6 % . 46 eyes had irregular plaque calcification, and 33 of them had the diameter of 4 to 10 mm; 13 eyes had dispersed or isolated calcification spots. Conclusion The calcification of retinoblastoma revealed by CT is characteristic and clinical features are helpful for the diagnosis of atypical retinoblasto-