Journal
JOURNAL OF CHILD NEUROLOGY
Volume 25, Issue 11, Pages 1425-1428Publisher
SAGE PUBLICATIONS INC
DOI: 10.1177/0883073810370897
Keywords
leukoencephalopathy; brainstem; spinal cord; lactate
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Leukoencephalopathy with brainstem and spinal cord involvement and elevated brain lactate diagnosis is based on its highly characteristic pattern of abnormalities observed by magnetic resonance imaging and spectroscopy. Clinically, affected patients develop slowly progressive cerebellar ataxia, spasticity, and dorsal column dysfunction, sometimes with a mild cognitive deficit or decline. In 2007, the pathophysiology of this disorder was elucidated with the discovery of mutations in the DARS2 gene, which encodes mitochondrial aspartyl-tRNA synthetase, in affected individuals. Here, the authors present a case of leukoencephalopathy with brainstem and spinal cord involvement with normal brain lactate, in which genetic analysis revealed a new mutation in the DARS2 gene not previously described.
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