CT and MRI diagnosis of intracranial germ cell tumors
- VernacularTitle:脑内生殖细胞瘤的 CT 及 MRI 诊断
- Author:
Yanping JING
;
Xiaodong NAN
;
Bin LUO
;
Zhengrong GAO
;
Jun ZHANG
;
Xin XIN
;
Yan ZHANG
;
Jingliang CHENG
- Publication Type:Journal Article
- Keywords:
Germ cell tumors;
Pineal body;
Magnetic resonance imaging
- From:
Journal of Chinese Physician
2014;(z1):40-43
- CountryChina
- Language:Chinese
-
Abstract:
Objective To study the features of CT and MRI diagnosis of intracranial germ cell tumors ,and to improve the un-derstanding of its imaging findings .Methods Fifteen cases of intracranial germ cell tumors proved by pathology and follow-up were retrospectively analyzed .Results Among the 15 cases with intracranial germ cell tumors ,9 cases in pineal body , tumours showed like-round masses,the margin of the masses were well defined .CT was slightly high density,MRI revealed isointense or hypointense signals on T1 weighted and homogeneous hyperintense signals on T 2 weighted image without edema around tumors and homogeneous en-hancement.One cases in CSF spread.Four cases were identified in the saddle-up area, among the 2 cases was cystic,1 cases was sol-id-cystic and 1 cases was solid,CT was isointense or high density in solid,low density in cystic,without edema around tumors.MRI re-vealed slight-hypointense signals on T 1 weighted and hyperintense signals on T 2 weighted image clearly enhanced in solid , cystoid with-out enhance .In the other 2 cases of intracranial germ cell tumors in the basal ganglia region ,CT was inhomogeneous high density ,inho-mogeneous signals on T2 and T1 weighted image, inhomogeneous enhancement .Conclusions Intracranial germ cell tumors show char-acteristic manifestations on CT and MRI,according to location,shape,signal,age characteristic,which is helpful in diagnosis and differ-ential diagnosis and guide treatment plan .
