儿童视网膜母细胞瘤的影像诊断  

Imaging diagnosis of retinoblastoma in children

作　　者：王亮[1] 周珉[1] 盛茂[1] 王琪[1] 沈均康 

机构地区：[1]苏州大学附属儿童医院影像科,215003

出　　处：《江苏医药》2011年第8期934-936,I0001,共4页Jiangsu Medical Journal

摘　　要：目的探讨视网膜母细胞瘤(RB)的影像特征及其诊断价值。方法回顾性分析31例经病理证实的RB影像资料。所有病例均行CT检查,14例行MRI检查,4例行超声检查。结果 27例具有典型RB的CT表现:眼球后部软组织肿块;斑点状或团块状钙化(4例无钙化);视神经增粗3例。MRI显示14例球内肿块,视神经增粗2例。超声4例均显示球后方肿块回声,可见钙化强光斑伴后方声影。结论 CT对肿瘤具有定性诊断作用,MRI对无钙化肿块鉴别诊断及对视神经受侵犯具有重要意义。超声对肿块的钙化显示较好,而且应用彩色多普勒超声可对肿块内的血流信号进一步分析。Objective To study imaging features of retinoblastoma and the value in diagnosis. Methods Thirty-one cases with retinoblastoma proved by pathology were analyzed respectively, of whom CT scan was performed in 31 cases, MRI in 14 cases and ultrasound examination in 4 cases. Results Twenty-nine cases had typical CT findings such as soft tissure mass on the back wall of the eyeball, path or mass calcification（except for 4 cases） within the lesion, enlargement of optic nerve in 3 cases. On MRI,masses in the eyeball were showed in 14 cases and 2 cases with enlargement of the optic nerve. On ultrasound, the echo of mass on the back wall of eyeball was showed in 4 cases,which had calcification with shadow. Conclusion CT has important value in qualitative diagnosis. For the tumor without calcification or with invasion of the optic nerve, MRI scan is very important. Ultrasound, especially colour ultrasound, can show calcification and blood folw singal for analyzing the mass further.

关 键 词：视网膜母细胞瘤 CT MRI 超声 

分 类 号：R814[医药卫生—影像医学与核医学]