MR findings of Dysembryoplastic Neuroepithelial Tumor
Journal of the Korean Radiological Society
;
: 403-407, 1997.
Artigo
em Coreano
| WPRIM
| ID: wpr-87729
ABSTRACT
PURPOSE:
Dysembryoplastic neuroepithelial tumor (DNET) is a newly described, pathologically benign tumor arising within the supratentorial cortex. We reviewed the MR appearance of five patients with DNET, emphasizing the clinical and radiologic features. MATERIALS ANDMETHODS:
MR images in the five patients (three male and two female) with a history of epileptic seizure and pathologically-proven DNET were retrospectively reviewed. We analyzed the location, configuration, signal intensity, contrast enhancement, vasogenic edema and calcifications of these tomors.RESULTS:
The tumors were located mainly in the cortical to subcortical area with very little perifocal mass effect on MR imaging. They were essentially hypointense on T1-weighted imaging, and showed a hyperintense well circumscribed mass on T2-weighted imaging and a thick gyrus-like configuration was retained within the lesions. On contrast enhanced study, focal nodular enhancement was seen in one patient, and multifocal nodular enhancement in two.CONCLUSION:
DNET is rare benign tumor resulting in often medically intractable epileptic seizure and shows a characteristic gyriform configuration, well-described lobular tumor margins and sometimes multifocal nodular enhancement. These radiologic features may aid in differentiating DNET from ganglioglioma and other gliomas.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Imageamento por Ressonância Magnética
/
Estudos Retrospectivos
/
Neoplasias Neuroepiteliomatosas
/
Ganglioglioma
/
Edema
/
Epilepsia
/
Glioma
Tipo de estudo:
Estudo diagnóstico
/
Estudo observacional
Limite:
Humanos
/
Masculino
Idioma:
Coreano
Revista:
Journal of the Korean Radiological Society
Ano de publicação:
1997
Tipo de documento:
Artigo
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