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Brain Tumor Res Treat. 2016 Apr;4(1):35-9. doi: 10.14791/btrt.2016.4.1.35. Epub 2016 Apr 29.

Hypothalamic Extraventricular Neurocytoma (EVN) in a Pediatric Patient: A Case of EVN Treated with Subtotal Removal Followed by Adjuvant Radiotherapy.

Author information

1
Seoul National University College of Medicine, Seoul, Korea.; Department of Neurosurgery, Seoul National University Bundang Hospital, Seongnam, Korea.
2
Korea University College of Medicine, Seoul, Korea.; Department of Pathology, Korea University Guro Hospital, Seoul, Korea.
3
Seoul National University College of Medicine, Seoul, Korea.; Department of Pathology, Seoul National University Bundang Hospital, Seongnam, Korea.

Abstract

Extra ventricular neurocytoma (EVN) is a rare brain tumor with histologic features similar with a central neurocytoma, but located outside of the ventricular system. In this study, we present an unusual case of hypothalamic EVN in a 14-year-old patient. The patient underwent subtotal removal and had tumor relapse. The patient was then treated using intensity modulated radiation therapy, and the tumor remained stable for 24 months. This case report may be important in that this is the first pediatric case of EVN located in the hypothalamic region. EVN has similar radiologic features with pilocytic astrocytomas and therefore a hypothalamic EVN may be misdiagnosed as a hypothalamic glioma. Also, the pathologic-radiologic-clinical correlation of EVN located in the hypothalamic area may be different from that of EVNs originating from other usual sites.

KEYWORDS:

Hypothalamus tumor; Neurocytomas

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