MR Imaging Study of Intracranial Hemangiopericytomas
- VernacularTitle:颅内血管外皮细胞瘤的磁共振影像研究
- Author:
Qian CHEN
;
Jianping DAI
;
Peiyi GAO
;
Mingwang ZHU
- Publication Type:Journal Article
- Keywords:
hemangiopericytomas;
brain neoplasms;
magnetic resonance imaging
- From:
Journal of Practical Radiology
1996;0(04):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To study the MRI findings of intracranial hemangiopericytomas. Methods The MRI in 27 pathologically proved cases of intracranial hemangiopericytomas were retrospectively reviewed.Results The MRI characteristics of intracranial hemangiopericytomas were as follows: (1) The tumors appeared mainly iso- and hypointense with cortical gray matter on T 1-Weighted images and iso- and hyperintense on T 2-Weighted images. The hyperintense on T 1-Weighted images and hypointense on T 2-Weighted images were unusual observed in tumors. After contrast injection,the lesions usually enhanced markedly and heterogeneously. (2) The tumors tended to be irregular multilobulated in shape. (3) More than half tumors were narrow-based dural attachment. (4) Multiple signal voids of vessel in tumors were often observed,but intratumoral calcification was not present. (5) Bone erosion was present,but hyperostosis was not present.Conclusion The MRI appearances of intracranial hemangiopericytomas are characteristic. It is helpful to get a correct diagnosis with clinical features.
