CT and MR findings of TolosaGHunt syndrome
10.3969/j.issn.1002-1671.2019.10.008
- VernacularTitle:痛性眼肌麻痹综合征的CT 、MR表现
- Author:
Bin LI
1
;
Wubiao CHEN
;
Xinhua LI
;
Youwen FU
;
Xiaodong CHEN
Author Information
1. 广东医科大学附属医院放射科
- Keywords:
Tolosa-Hunt syndrome;
computed tomography;
magnetic resonance imaging
- From:
Journal of Practical Radiology
2019;35(10):1587-1589
- CountryChina
- Language:Chinese
-
Abstract:
Objective To analyze CT and MRI features of Tolosa-Hunt syndrome (THS),to improve the diagnostic accuracy of this lesion.Methods CT and MRI findings of 1 6 patients with THS confirmed clinically were studied retrospectively.Results Eleven out of 1 6 cases’images were abnormal,including unilateral sinus cavernous enlarged asymmetrically,irregular shapes,the outer edges being smooth and straight or slightly bulging,and the inner edges without clear boundary.The maximum diameters of the lesions varied from 1.2 to 3.8 cm,with an average of (2.3 ± 0.9)cm.Ten cases of CT examination showed uniform densities with significant enhancement after enhanced scan.Six patients underwent MR scan and showed equal signals on T1 WI with equal or low signals on T2 WI,equal signals on DWI in 3 patients and obvious enhancement after contrast agent was inj ected.Among 6 cases with MR examination,5 were found to spread along the ipsilateral optic nerve to the orbital apex,4 temporal dura mater were thickened locally and obvious enhancement, 2 super petrosal veins were thickened,and 1 middle cerebral vein was thickened.Conclusion The diagnosis of THS should be considered when the unilateral cavernous sinus is increased asymmetrically,and other diseases are excluded.The helpful imaging feature includes relatively uniform density or signal of the lesion,significant enhancement,the lesion spreading along the optic nerve to the tip of the sac,and the thickening of temporal dura mater and super petrosal vein in the same lateral.The display of THS by MR seems to be superior to CT.
