MRI Features of Dysembryoplastic Neuroepithelial Tumor
10.3969/j.issn.1002-1671.2009.12.005
- VernacularTitle:胚胎发育不良性神经上皮瘤的MRI影像特点
- Author:
Wenwen LIANG
;
Xuelin ZHANG
- Publication Type:Journal Article
- Keywords:
brain;
MR imaging;
dysembryoplastic neuroepithelial tumor(DNT)
- From:
Journal of Practical Radiology
2009;25(12):1710-1712
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate MRI features of dysembryoplastic neuroepithelial tumor(DNT).Methods The MR images of ten cases with surgically and pathologically proved DNT were retrospectively reviewed.Results MR imaging showed cystic component with mural nodule in 6,mainly cystic component with septa in 3.The solid components of the tumors were long T_1 and long T_2 signal intensity,the cystic components were even longer T_1 and T_2 signal intensity which resembled the signal of cerebrospinal fluid.Mild enhancement could be found at the intra-tumoral solid nodule or septations after injection of constrast medium but the cystic component did not show any enhancement.No peri-tumoral edema and mass effect were found in most cases.Conclusion DNTs are of some special features on the MR images,the diagnosis can be exactly done before operation if MRI features in combination with clinical data of the patients.
