摘要
描述脉络膜转移癌的CT和MRI表现，对两种检查方法进行评估。材料和方法：回顾性分析经手术病理证实的9例脉络膜转移癌病例，其中7例经CT扫描检查，3例作MRI检查。结果：CT扫描显示眼球后部呈扁平状，均质中高密度肿块，有中度增强。MRI检查为扁平或半月状肿块，T1W呈高于玻璃体中等信号，PDW为高信号，T2W呈低信号。瘤体表面渗出性视网膜脱离在T1W和T2W均呈高信号。结论：CT和MRI对脉络膜转移癌等眼球内病变均可作出定位的影像学诊断。MRI对脉络膜转移癌与脉络膜黑色毒瘤的鉴别、瘤体内结构、与渗出性机网膜脱离的区分以及癌肿侵犯巩膜的情况较CT为优。
To describe the CT and MRI findings with the metastatic choroidal caner, and evaluate the twomethods. Materials and Methods: 9 metastatic choroidal caner patents proven by surgical pathologywere analysed, 7 cases were scannned by CT, and 3 with MRI. Results: CT scan showed an flat, homogenous mass with moderate enhancement. MRI revealed intermediate signal intensities on T1WI and lowsignal intensities on T2WI. One case showed high signal intensities in PDWI. Conclusion: CT and MRIcan make imaging diagnosis for intraocular diseases(metastatic choroidal caner). MRI was superior thanCT for differentiating caner from choroidal melanomas or subretinal effusion detachment and revealedscleral involvement.
出处
《中国医学计算机成像杂志》
CSCD
1997年第2期89-91,共3页
Chinese Computed Medical Imaging
