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1 patient data entry collated from reference Brandon et al, 2013.

allele 1allele 2
Clinical representationSymptomsAge groupPatient ageAge of onsetAge of death
At age 63: CPEO, ptosis, congenital cataracts, vision loss with macular degeneration, hearing loss, dysarthria, dysphagia, sensorimotor polyneuropathy, fatigue, migraine, cardiomyopathy and depression. At age 67, he developed asymmetric resting tremor and impaired balance. Examination at age 71 revealed CPEO, facial diplegia, mild symmetric rigidity, intermittent, pre- dominantly right-sided resting tremor and multidirectional head tremor, bradykinesia, and ataxic gait (broad based stance with inability to tandem). Brain MRI showed mild atrophy and very subtle multifocal subcortical white matter lesions.
-movement disorder (ataxia)
-axonal sensorimotor polyneuropathy
-headache/ migraine
-hearing loss

1-5 pathogenic cluster assignment of mutations. Mutations displayed without a superscript number are outside of the assigned pathogenic clusters. See cluster definitions for details.

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