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• Clinical Article •
The MRI features of dysembryoplastic neuroepithelial tumors
ZHU Ming-wang  ZHAO Dian-jiang  DU Tie-qiao  WANG Li-ning  ZHANG Xu-fei 

DOI:10.3969/j.issn.1674-8034.2012.03.002.


[Abstract] Objective: To analyze the MRI features of dysembryoplastic neuroepithelial tumors (DNET).Materials and Methods: The MR study of 14 patients with pathologic confirmed DNET was reviewed retrospectively with emphasize on tumor location, morphology, and characters of signal intensity.Results: In 14 DNET, 7 of them located in frontal lobe, 5 in temporal, and 2 in parietal lobe. All lesions involved the brain cortex with hypointense T1WI and hyperintense T2WI without contrast enhancement. FLAIR images showed a hyperintense ring surrounding the lesion. DNET displayed a triangle or wedge-shape lesion in 9 cases. Cystic structure was found in 10 patients. The skull remodeling was found in all 7 superficial DNET. Thirteen DNET showed no contrast enhancement. In 12 DWI scan, the tumor showed increased water diffusion in 11 cases.Conclustion: DNET has a relatively typical MR appearances. Lesion location and morphology, signal intensity, and multiple microcyst might help to make the diagnosis in patient with a DNET.
[Keywords] Magnetic resonance imaging；Dysembryoplastic neuroepithelial tumors

ZHU Ming-wang * Department of Radiology, Beijing Sanbo Brain Hospital, Capital Medical University, Beijing 100093, China

ZHAO Dian-jiang Department of Radiology, Beijing Sanbo Brain Hospital, Capital Medical University, Beijing 100093, China

DU Tie-qiao Department of Radiology, Beijing Sanbo Brain Hospital, Capital Medical University, Beijing 100093, China

WANG Li-ning Department of Radiology, Beijing Sanbo Brain Hospital, Capital Medical University, Beijing 100093, China

ZHANG Xu-fei Department of Radiology, Beijing Sanbo Brain Hospital, Capital Medical University, Beijing 100093, China

*Correspondence to: Zhu MW, E-mail: zhuemail@gmail.com

Conflicts of interest   None.

Received  2011-12-16
Accepted  2012-02-09
DOI: 10.3969/j.issn.1674-8034.2012.03.002
DOI:10.3969/j.issn.1674-8034.2012.03.002.

[1]
Daumas-Duport C, Scheithauer BW, Chodkiewicz JP, et al. Dysembryoplastic neuroepithelial tumor: a surgically curable tumor of young patients with intractable partial seizures. Report of thirty-nine cases. Neurosurgery, 1988, 23(5): 545-556.
[2]
王辅林，乔广宇，桂秋萍, 等. 胚胎发育不良性神经上皮瘤的影像学与临床病理特征. 中华放射学杂志, 2006, 40(1): 41-45.
[3]
邱士军，郭艳丽，朱俭, 等. 胚胎发育不良性神经上皮肿瘤影像与病理. 实用放射学杂志, 2007, 23(7): 871-87.
[4]
Cosson RS, Varlet P, Beuvon F, et al. Dysembryoplastic neuroepithelial tumors: CT, MR fingdings and imaging follow-up: a study of 53 cases. J Neuroradiol, 2001, 28(4): 230-240.
[5]
Fernandez C, Girard N, Paz Paredes A, et al. The usefulness of MR imaging in the diagnosis of dysembryoplastic neuroepithelial tumor in children: a study of 14 cases. AJNR Am J Neuroradiol, 2003, 24(5): 829-834.
[6]
Ostertun B, Wolf HK, Campos MG, et al. Dysembryoplastic neuroepithelial tumors: MR and CT evaluation. AJNR Am J Neuroradiol, 1996, 17(3): 419-430.
[7]
Yu AH, Chen L, Li YJ,et al. Dysembryoplastic neuroepithelial tumors: magnetic resonance imaging and magnetic resonance spectroscopy evaluation. Chin Med J, 2009, 122(20): 2433-2437.
[8]
许硕果，梁文，贾洪顺, 等. 胚胎发育不良性神经上皮肿瘤的MRI表现. 中华神经医学杂志, 2011, 10(1): 84-87.
[9]
王燕，张宗军，肖俊强, 等. 胚胎发育不良性神经上皮瘤的CT和MRI表现. 放射学实践, 2006, 21(9): 889-891.
[10]
肖俊强，李苏建，卢光明. 胚胎发育不良性神经上皮瘤的MRI表现. 中华放射学杂志, 2006, 40(5): 467-469.
[11]
Parmar HA, Hawkins C, Ozelame R, et al. Fluid-attenuated inversion recovery ring signs as a marker of dysembryoplastic neuroepithelial tumors. J Comput Assist Tomogr, 2007, 31(3): 348-353.

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