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  • Title: Dysembryoplastic neuroepithelial tumors: a prospective clinicopathologic and outcome study of 13 children.
    Author: Spalice A, Ruggieri M, Grosso S, Verrotti A, Polizzi A, Magro G, Caltabiano R, Pavone P, Del Balzo F, Platania N, Iannetti P.
    Journal: Pediatr Neurol; 2010 Dec; 43(6):395-402. PubMed ID: 21093729.
    Abstract:
    Dysembryoplastic neuroepithelial tumors (DNETs) are benign intracortical masses that are typically observed in children and young adults and are classified as glioneuronal tumors (WHO grade I). Large and retrospective series of patients with DNETs have been reported, but prospective studies on pediatric cohorts of patients with DNETs have been lacking. In the present study, 13 children (8 boys, 5 girls; age 8-18 years) who had simple (n = 2) or complex (n = 11) partial seizures (seizure duration range, 2-4 years; mean, 1.5 years; mode, 1.2 years) were prospectively enrolled and monitored over 13 years. The DNETs were located in the frontal (n = 2), temporal (n = 9), or occipital (n = 2) cortex. In 11/13 cases, the seizures were resistant to drug therapy, and all the children had surgery consisting of extended lesionectomy coupled with neuronavigation. Pathology examination revealed cortical dysplasia (n = 8), glial nodules (n = 11), calcification (n = 4), cellular atypia (n = 3), endothelial proliferation (n = 1), perivascular inflammation (n = 3), and meningeal involvement (n = 6). All children were seizure free throughout postsurgical follow-up of 2-11 years. This first prospective study with follow-up monitoring of a childhood population with DNETs confirms, on a long-term basis, that the coupled strategy of extended lesionectomy and neuronavigation has good outcome for long-term seizure control.
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