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Abstract

Leber Hereditary Optic Neuropathy is an inherited optic neuropathy caused by mitochondrial DNA point mutations leading to sudden, painless loss of vision. We report a case of an 8-year-old boy presenting with a radiological phenotype of longitudinally extensive transverse myelitis on a background of severe visual impairment secondary to Leber Hereditary Optic Neuropathy (LHON). He was found to have dual mitochondrial DNA mutations at 14484 (MTND6 gene) and 4160 (MTND1 gene) in a family with a severe form of LHON characterised by not only an unusually high penetrance of optic neuropathy, but also severe extra-ocular neurological complications. The m.14484T>C mutation is a common LHON mutation, but the m.4160T>C mutation is to our knowledge not reported outside this family and appears to drive the neurological manifestations. To our knowledge there have been no previous reports of spinal cord lesions in children with LHON.

Item Type:	Article
Authors/Creators:	Bursle, C and Riney, K and Stringer, J and Moore, D and Gole, G and Kearns, LS and Mackey, DA and Coman, D
Keywords:	Leber Hereditary Optic Neuropathy, LHON plus, longitudinally extensive transverse myelitis, mitochondrial, myelopathy, transverse myelitis
Journal or Publication Title:	JIMD reports
Publisher:	Wiley-VCH Verlag GmbH & Co
ISSN:	2192-8312
DOI / ID Number:	https://doi.org/10.1007/8904_2017_79
Copyright Information:	Copyright Society for the Study of Inborn Errors of Metabolism (SSIEM) 2018
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