Mitochondrial myopathy Mitochondrial disease with hypertrophic cardiomyopathy Mitochondrial disease with dilated cardiomyopathy Mitochondrial disease with peripheral neuropathy Mitochondrial oxidative phosphorylation disorder due to a point mutation of mitochondrial DNA MERRF NCIt:C84889 MERRF syndrome ICD10:G71.3 UMLS:C0162672 OMIM:545000 Fukuhara syndrome MedDRA:10069825 DOID:310 ICD10:E88.42 Myoclonus epilepsy associated with ragged-red fibers Sirarat Sarntivijai myoclonic epilepsy- ragged red fibers A mitochondrial encephalomyopathy characterized clinically by a mixed seizure disorder, myoclonus, progressive ataxia, spasticity, and a mild myopathy. Dysarthria, optic atrophy, growth retardation, deafness, and dementia may also occur. This condition tends to present in childhood and to be transmitted via maternal lineage. Muscle biopsies reveal ragged-red fibers and respiratory chain enzymatic defects. (From Adams et al., Principles of Neurology, 6th ed, p986) MESH:D017243 Progressive myoclonic epilepsy Mitochondrial disease with eye involvement