Abstract
Objective To investigate the clinical characteristics of dysembryoplastic neuroepithelial tumor(DNET) and to improve the comprehension of the lesions.Method The clinical presentation,imaging characteristics,surgical treatment and histopathologic outcomes of fourty-two cases with a confirmed diagnosis of DNET were restrospoctively reviewed.Results The first symptom of DNET was epilepsy in 40 cases (40/42,95%).The characteristics of MRI examination of DNET included decreased signal on the T1-weighted images and a hyper-intense signal on T2-weighted images in 37 cases,and intermix T1 and T2 in 5 patients.Thirty cases were type A and 12 cases were type B.Conclusions Epilepsy is the first and foremost symptom of DNET.CT and MRI are most important diagnostic methods for DNET before operation.Extended resection including mass lesion and epilepsy focus should be performed to relieve seizure attack. Key words: Neoplasms,neuroepithelial; Diagnosis; Surgical procedures,operative; Type
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