Correlation of radiological charicteristics of Coats’disease with pathology / 实用放射学杂志

ABSTRACT

Objective To investigate the CT and MRI findings of Coats’disease in comparison with pathology.Methods CT,MRI and ultrasonic features,FFA findings of eight patients of Coats’disease with histo-pathologically confirmed were analyzed retrospectively.CT scanning,routine MRI scanning and ultrasonic examination were performed in all eight patients.Results Unilateral eyeball was involved in all eight cases.On CT scanning,the density of the vitreous body was increased homogeneously which boundary was clear(n=8).The retina was thick(n=8).The anterior chamber depth was shallow(n=5).Multiple calcified foci occured in lens and vitreous body(n=1).The volume of affected eyeball increased(n=1).The affected eyeball shrinked(n=1).The difference of volume of bilateral eyeball was not obvious(n=6). Lens were thick and dislocation(n=5).On MRI scanning,the lesions in the vitreous body showed iso T1 and iso T2 signal (n=6),short T1 and long T2 signal(n=1),long T1 and long T2 signal(n=1).The retina showed short T2 signal(n=3).The vitreous body was filled with lesions(n=5).The lesions looked like‘V’sticked to retina(n= 3).On ultrasonic examination low echo was showed in the vitreous body(n=6),the ball wall bulged(n=8),retinal detachment(n=8).The echo of the ball wall was obviously enhanced,which indica-ted ossification(n=1).Strong echo calcified plaque was showed in one case.FFA showed retinal telangiectasia(n=8),retinal capillary zone(n=2),mutiple chestnut shaped aneurysms(n= 6),retinal neovascularization(n= 1 ).Pathological examination showed retinal telangiectasia with foam macrophages and lipid deposition.Conclusion Coats’disease carries some typical CT and MRI features.To summarize the radiologic features,the findings of FFA and ultrasonic inspection are helpful to diagnosis.