脉络膜裂囊肿的MRI诊断

沈训泽; 李森华

中国临床医学影像杂志 ›› 2006, Vol. 17 ›› Issue (10) : 557-559.

论著

脉络膜裂囊肿的MRI诊断

沈训泽1,李森华2

作者信息 +

MRI diagnosis of choroidal fissure cyst

SHEN Xun-ze1, LI Sen-hua2

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文章历史 +

摘要

目的:探讨脉络膜裂囊肿的MRI诊断价值。材料和方法:回顾分析19例脉络膜裂囊肿的MRI表现,其中8例行CT检查,5例行MR增强扫描。结果:19例均位于脉络膜裂内,发生于右侧17例,发生于左侧2例;均为单发病灶;最大者20mm×28mm,最小者3mm×5mm,平均11mm×14mm。呈边界清楚的卵圆形或类圆形水样信号灶,与环池或四叠体池相连,灶周无水肿,5例MR增强扫描病例未见强化。结论:MR具有多参数、多平面成像的特点,可明确脉络膜裂囊肿的诊断,并可清楚地显示脉络膜裂,对脉络膜裂囊肿的诊断明显优于CT。

Abstract

Objective: To discuss the value of MRI in the diagnosis of choroidal fissure cyst. Meterials and Methods: MRI findings of choroidal fissure cyst in 19 patients were analyzed retrospectively. Axial CT scanning had been applied in 8 cases, and 5 cases accepted further MRI enhanced scanning. Results: All lesions located at the area of choroidal fissure, 17 cases were in the right and 2 cases in the left. They all were single lesion. The size of the biggest lesion was 20mm×28mm and the smallest was 3mm×5mm. Round or long oval shape was seen on axial imaging, communicated with ambient cistern or qaudrigeminal cistern, with no associated edema. Gd-DTPA was performed in 5 cases and revealed no evidence of enhancement. Conclusion: MR imaging with multiple planes and sequences, and can see the choroidal fissure clearly. MR is better than CT in diagnosing choroidal fissure cyst.