Estimate adhesion of cavernous hemangioma in orbit by CT and MRI image

Objective To assess the degree of adhesion of cavernous hemangioma (CH) in orbit by CT and MRI features. Methods The authors retrospectively reviewed CT and MRI findings of 97 patients which confirmed to be CH, compared the adhesion degree of CH with recorded before. Results In 97 patients, 47 had slight adhesion, CT, MRI showed well defined margins and were round to ovoid; 14 had mild adhesion, CT, MRI showed no defined margins between CH and optic nerve or extraocular muscles, in area of contrast enhancement, there were often find emissary vein on posterior of CH. Severe adhesion were observed in 36 patients, CT, MRI showed that orbital apex was full filled with tumor, or if not, CH was out of shape, or there were not defined margins. In area of contrast enhancement, posterior of CH was rough or not so smooth.Conclusions Careful analysis CT and MRI images before operation can lead well estimate adhesion degree of CH. Key words: Cavernous hemangioma;  CT;  MRI