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Posterior Reversible Encephalopathy Syndrome in a Leber Hereditary Optic Neuropathy Patient With Mitochondrial DNA 11778G>A Point Mutation

Da, Yuwei MD; Zhang, Xuxiang MD; Li, Fang MD; Yang, Xiaoping MD; Zhang, Xinqing MD; Jia, Jianping MD

doi: 10.1097/WNO.0b013e31828f8d75
Clinical Observations

Abstract: Leber hereditary optic neuropathy (LHON) is a maternally inherited mitochondrial disorder that primarily affects the optic nerve. We report a case of reduced visual acuity secondary to optic atrophy in a 13-year-old boy. Transient seizures developed subsequently. Serial magnetic resonance imaging of the brain showed posterior reversible encephalopathy syndrome. Ragged red fibers were not detected on skeletal muscle biopsy. A 11778G>A mitochondrial DNA point mutation was identified in the lymphocytes isolated from peripheral blood. His younger brother was a carrier with the same mutation. The presentation of this case is unusual documenting LHON in association with PRES.

Departments of Neurology (YD, FL, XZ, JJ); Ophthalmology (XZ); and Radiology (XY), Xuan Wu Hospital, Capital Medical University, Beijing, China.

Address correspondence to Jianping Jia, Department of Neurology, Xuan Wu Hospital, Capital Medical University, Beijing 100053, China; E-mail:

The authors report no conflicts of interest.

Y. Da and X. Zhang have contributed equally.

© 2013 by North American Neuro-Ophthalmology Society