CT Diagnosis of Dermoid Cyst of the Orbit
- VernacularTitle:眼眶皮样囊肿的CT诊断
- Author:
Suhua GOU
;
Qingrong DENG
;
Zhonghua LI
;
Hanpei HUANG
- Publication Type:Journal Article
- Keywords:
mass of the orbit;
dermoid cyst;
tomography,X-ray computed
- From:
Journal of Practical Radiology
2001;0(05):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To study the CT findings of dermoid cyst of the orbit.Methods Four cases of dermoid cyst of the orbit proved by operation and pathology were presented. There were three cases of male, one case of female, age 6～21 years. Transverse CT scans(3 mm slice) and coronal CT scans(5 mm slice) were obtained, in which enhancement study was done in two cases.Results Among four cases, lesion was located in the right on three cases, in the left on one case. All lesions were located outside the muscle of upper-lateral guarter. One lesion was showed a multi-lobular shape, with widening of the frontozygomatic fissure and protruding to outside of the orbit. Three lesions were found anoval shape, in which one lesion was showed a bony sclerosis and thickening, another two cases were showed no bony change. On all cases, the edge of the lesions were demonstrated clearly, in which three cases were low-density(-140～-80 HU) similar to fat density, and one case with heterogeneous density. The lesion was showed more clearly on enhancement study on two cases.Conclusion CT findings of dermoid cyst of the orbit is characteristic and the diagnosis can be made before operation.
