" /> Leigh syndrome - CISMeF





ICD-11 code : 5C53.24;

Preferred Label : Leigh syndrome;

ICD-11 definition : Leigh syndrome or subacute necrotizing encephalomyelopathy is a progressive neurological disease defined by specific neuropathological features associating brainstem and basal ganglia lesions. Loss of motor milestones, hypotonia with poor head control, recurrent vomiting, and a movement disorder are common initial symptoms. Pyramidal and extrapyramidal signs, nystagmus, breathing disorders, ophthalmoplegia and peripheral neuropathy are often noted later. Epilepsy is relatively uncommon. Leigh syndrome has multiple causes, all of which imply a defect in aerobic energy production, ranging from the pyruvate dehydrogenase complex to the oxidative phosphorylation pathway.;

ICD-11 synonym : Infantile subacute necrotizing encephalopathy; Leigh disease; Subacute necrotising encephalopathy; subacute necrotising encephalomyelopathy;

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Leigh syndrome or subacute necrotizing encephalomyelopathy is a progressive neurological disease defined by specific neuropathological features associating brainstem and basal ganglia lesions. Loss of motor milestones, hypotonia with poor head control, recurrent vomiting, and a movement disorder are common initial symptoms. Pyramidal and extrapyramidal signs, nystagmus, breathing disorders, ophthalmoplegia and peripheral neuropathy are often noted later. Epilepsy is relatively uncommon. Leigh syndrome has multiple causes, all of which imply a defect in aerobic energy production, ranging from the pyruvate dehydrogenase complex to the oxidative phosphorylation pathway.

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30/04/2025


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