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EEG showing sleep-like pattern (a) with no response to external stimuli (yellow rectangle) (b)
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The electroencephalogram (EEG) performed on the first day of hospitalisation (Fig. 1a) showed a monomorphic continuous pattern of sleep spindles with no reactivity to external stimuli (Fig. 1b).
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Brain MRI scan compatible with pontine myelinolysis (arrow)
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The brain magnetic resonance imaging (MRI) scan (Fig. 2) was compatible with pontine myelinolysis associated with the elevation of blood sodium levels.
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