眼球病变的CT分析(附25例报告)

CT diagnosis of bulbus oculi diseases

目的 探讨分析眼球病变的 CT表现。方法 收集经手术病理或随访证实的 2 5例眼球病变的 CT资料进行分析评价。结果 1脉络膜恶性黑色素瘤呈弧线状、丘状实体、强化明显 ,瘤体 >1.5 mm继发网膜脱离。 2视网膜母细胞瘤呈限局突入或弥漫性生长和不规则钙化斑。 3脉络膜骨瘤与弥漫性钙化 :CT值 >10 6 Hu,无强化 ,前者局限 ,后者广泛。4Coats病 :无强化 ,CT值 :31Hu,玻璃体内弥漫性改变。 5原发性视网膜脱离 :新月状高密度影 ,CT值 :41Hu±。 6白内障 :老年性 (过熟期 )晶体致密、增大、CT值为钙化密度 ,外伤性则晶体密度降低 ,断裂者则变小。结论 眼球肿瘤的 CT征象具有一定的特点 ,可作为定性诊断的依据。其他良性或外伤病变结合临床病史也可作出准确的诊断。

Objective To study the CT features of bulbus oculi diseases.[WT5”HZ]Methods[WT5”BZ] The CT features of 25 cases of eyeball diseases proved by pathological examinations or follow-up studies were analyzed retrospectively.[WT5”HZ]Results ①The CT features of malignant melanoma of choroid were curvilinear or buninoid entity,distinct enhancement,tumor size >1.5mm,and secondary retinodialysis.②Retinoblastoma appeared as localized or diffuse growth and irregular calcified plaque.③Choroidalosteoma and diffuse calcification did not show enhancement with CT value more than 106 Hu,and the lesion scope of the former was localized,while that of the latter was diffused.④Coatss disease showed diffuse changes in corpus vitreum without enhancement and with CT value of 31 Hu.⑤The cases of primary retinodialysis presented high density cresent image with CT value of 41 Hu.⑥Senile cataract(hypermature stage )showed dense and enlarged crystalline lens with calcium density,while traumatic catarct showed crystalline lens with lowering density or small crystalline lens in fragmentation cases.[WT5”HZ]Conclusion Bulbus oculi tumors had certain CT features which were helpful for making qualitative diagnosis.The accurate diagnoses of other benign or traumatic bulbus oculi diseases could also be made with the help of their CT features in combination with the clinical history.