This reports a case of dysembryoplastic neuroepithelial tumor (DNET) in a 5-year old male presenting with visual hallucination and seizures. Diagnostic workup revealed a homogenous cystic tumor located in the right temporo-parietal area which was considered as a low grade glioma. The patient underwent endoscopic third ventriculostomy with complete tumor excision and biopsy, revealing NET. Findings were confirmed by immunohistochemical staining with glial fibrillary action protein (GFAP), Alcian blue and synaptophysin. DNET is a recently described intracranial tumor under the World Health Organization classification of central nervous system (CNS) tumors. It is a unique entity of neuroglial tumors with excellent prognosis. Its worldwide incidence among all neuroepithelial tumors is 1.2% in patients under 20 years and 0.2% among patients over 20 years. This is the first case of DNET in the country as well as in our institution. Key points on the clinical manifestation, approach to diagnosis, distinctive radiologic and histopathologic characteristics, and management are discussed.
Neoplasms, Neuroepithelial

No abstract available.
Ganglioglioma* ; Neoplasms, Neuroepithelial ; Neuroblastoma ; Prognosis

No abstract available.
Magnetic Resonance Imaging* ; Neoplasms, Neuroepithelial*

No abstract available.
Magnetic Resonance Imaging* ; Neoplasms, Neuroepithelial*

The authors presented one case of Dysembryoplastic neuroepithelial tumor revealed at a 23 years old woman with a 6 years epileptic. The histological and immunohistochemical aspect identified a “nonspecific” DNT. The authors discussed about the clinical, CT scanner, MRI and pathologic aspects and reviewed in literature
Neuroectodermal Tumors, Primitive, Peripheral ; Neoplasms, Neuroepithelial

Adult ; Female ; Humans ; Neoplasms, Neuroepithelial ; diagnosis

Cerebral white matter tracts are altered by a brain tumor. We report a case of gliomatosis cerebri where the diffusion tensor fiber tract passes through the tumor.
Brain Neoplasms ; Diffusion Magnetic Resonance Imaging ; Diffusion* ; Neoplasms, Neuroepithelial*

Three patients with complex partial seizures had dysembryoplastic neuroepithelial tumor (DNET) in temporal lobe. In all cases, longterm video-EEG monitoring showed epileptogenic focus in left temporal lobe where small mass lesion was located. For further seizure localization and functional mapping, subdural grids were placed on left temporal lobe including lesions. Lateral temporal lobectomy with lesionectomy was performed in two cases. Lateral temporal lobe resection and amygdalohippocampectomy was done in one case. The pathological findings of all lesions were characterized by intracortical location, multiple nodular architecture, foci of dysplastic cortical disorganization and the presence of a specific glioneuronal element. All patients have been seizure free.
Epilepsy, Temporal Lobe* ; Humans ; Neoplasms, Neuroepithelial* ; Seizures ; Temporal Lobe*

No abstract available.
Magnetic Resonance Imaging* ; Magnetic Resonance Spectroscopy* ; Neoplasms, Neuroepithelial*

An astroblastoma is a rare primary glial tumor occurring preferentially in young adults. It is characterized by a perivascular arrangement of the tumor cells forming perivascular pseudorosettes mimicking ependymomas. The histogenesis of astroblastoma is unclear, despite a number of studies to determine its possible cellular origin. We have experienced a case of astroblastoma located at the temporal lobe. It presented as a large, wellcircumscribed, and highly enhanced mass lesion on magnetic resonance images(MRI). The tumor was well demarcated and did not infiltrate the brain, which made complete removal possible. Here, we report and discuss the characteristic histological and radiological features of this case.
Brain ; Ependymoma ; Glioma ; Humans ; Neoplasms, Neuroepithelial* ; Temporal Lobe ; Young Adult