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Neuropediatrics. 2008 Apr;39(2):119-22. doi: 10.1055/s-2008-1081217.

L-2-hydroxyglutaric aciduria and brain tumors in children with mutations in the L2HGDH gene: neuroimaging findings.

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Department of Pediatric Neurology, Hacettepe University Faculty of Medicine, Ankara, Turkey.


L-2-Hydroxyglutaric aciduria (L-2-HGA, MIM 236792) is a rare autosomal recessive neurodegenerative disorder characterized by psychomotor delay, cerebellar and extrapyramidal signs and subcortical leukoencephalopathy with basal ganglia and dentate nuclei involvement. Mutations in the gene L2HGDH ( C14ORF160/DURANIN/) have been identified as causative for L-2-HGA. A feature disproportionally associated with L-2-HGA is the development of malignant brain tumors. In our cohort of 40 patients with L-2-HGA, two developed medulloblastoma and glioblastoma multiforme during the course of the disease. Two missense mutations in two patients were identified in the L2HGDH gene in exon 3 (c.292C-->T) and in exon 7 (c.887T-->A). Both mutations were present in the homozygous state. Serial MR imaging findings as well as MR spectroscopy imaging is reported in a patient who developed glioblastoma multiforme.

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