With interest we read the article by Chong et al. about a study of 13 patients with mitochondrial encephalopathy, lactic acidosis, and stroke-like episodes (MELAS) and 20 patients with acute ischemic stroke (AIS) for the sensitivity/specificity of the flow-void sign (FVS) and hyperintense vessel sign (HVS) on MRI [1].

Keywords: MELAS, stroke-like episode, stroke-like lesion, MRI, vasculopathy


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