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  • Title: Adult-onset mitochondrial encephalomyopathy, lactic acidosis and stroke-like episodes (MELAS) syndrome with progressive sensorineural hearing loss: A case report.
    Author: Trang TM, Chien PC, Dung BT, Thu NTH, Truc NTT, Khang VNC.
    Journal: Radiol Case Rep; 2021 Jul; 16(7):1865-1869. PubMed ID: 34093932.
    Abstract:
    Mitochondrial encephalomyopathy, lactic acidosis, and stroke-like episodes (MELAS) syndrome is one of the most common maternally inherited mitochondrial disorders, with no specific treatment available. We report a case of a 34-year-old female in whom symptoms of MELAS were initially misdiagnosed as herpes simplex encephalitis (HSE). Her clinical course was marked by an acute episode of consciousness disturbance with newly developed lesions on brain MRI five years after disease onset and followed by progressive sensorineural hearing loss. Brain imaging sequences throughout the seven years of her illness are presented. The final diagnosis of MELAS syndrome was confirmed by m.3243A>G mitochondrial mutation. In conclusion, understanding the overlapping imaging features between MELAS syndrome and other mimickers, such as HSE or ischemic stroke, is crucial to help establish early diagnosis and initiate appropriate treatment.
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