• We describe a 16-year-old boy who has a progressive dementia and seizures. On investigation, he was found to have a mitochondrial myopathy and elevated lactate levels in the blood and cerebrospinal fluid. His sister died at 18 years of age of a similar condition.
Hart ZH, Chang C, Perrin EVD, Neerunjun JS, Ayyar R. Familial Poliodystrophy, Mitochondrial Myopathy, and Lactate Acidemia. Arch Neurol. 1977;34(3):180–185. doi:10.1001/archneur.1977.00500150066013
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