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J Neurooncol. 2009 Jan;91(2):233-6. doi: 10.1007/s11060-008-9706-2. Epub 2008 Oct 18.

Hydroxyglutaric aciduria and malignant brain tumor: a case report and literature review.

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Department of Radiation Oncology, Imam Khomeini Hospital Complex, Tehran University of Medical Sciences, Keshavarz Boulevard, Tehran, Iran.


L -2-Hydroxyglutaric aciduria (L -2-OHGA) is a rare autosomal recessive inherited encephalopathy. This inborn error, characterized by psychomotor retardation, progressive ataxia and typical magnetic resonance imaging findings, presents in early infancy. To make a definitive diagnosis, an anomalous accumulation of L -2-hydroxyglutaric acid must be detected in body fluids. Here, we present a 17-year-old boy with L: -2-OHGA who developed an anaplastic ependymoma during the course of this disease. We also present a literature review including seven other patients who developed malignant brain tumors during the course of L -2-OHGA. This correlation may indicate a possible increased risk of brain tumors among patients with L -2-hydroxyglutaric aciduria.

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