Case report: 5 year follow-up of adult late-onset mitochondrial encephalomyopathy with lactic acid and stroke-like episodes (MELAS)
نویسندگان
چکیده
Mitochondrial encephalomyopathy with lactic acid and stroke-like episodes (MELAS) is a multisystem mitochondrial disorder that typically presents in childhood. We describe the follow-up of a patient who was diagnosed with late-onset MELAS at the age of 49. Her clinical course includes sensorineural hearing loss, seizures, and multiple episodes of stroke-like metabolic crises. Molecular genetic testing on whole blood revealed 31% heteroplasmy of a m.3243A > G variant in the mtDNA, the causative variant in approximately 80% of MELAS cases. The original diagnostic criteria for MELAS required the onset of stroke-like episodes prior to 40 years of age but this case and others demonstrate that onset may be delayed in certain individuals. Therefore, MELAS should be included in the differential diagnosis of stroke-like episodes in patients of any age.
منابع مشابه
Late-onset mitochondrial encephalomyopathy with lactic acid and stroke-like episodes (MELAS), defining symptomology
With interest we read Finsterer et al.'s response [1] to our manuscript ‘Case Report: 5 Year Follow-Up of Adult Late-OnsetMitochondrial Encephalomyopathy with Lactic Acid and Stroke-Like Episodes (MELAS)’ [2]. We have the following responses: Regarding the lack of theMRIfigure, theMRIwas performed at an outside hospital. As a result an MRI figure was not available despite efforts to the contrar...
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