Mitochondrial cytopathy with common MELAS mutation presenting as multiple system atrophy mimic.

Mitochondrial encephalomyopathy, lactic acidosis, and stroke-like episodes (MELAS) syndrome(1) is one of the most frequently inherited mitochondrial disorders. MELAS syndrome is a systemic disease with multiple organ involvement.(2) The most common mutation in MELAS is the m.3243A>G mutation in the MT-TL1 gene.(2).