PMC7283096_01
Brain CT scan: diffuse moderate to severe cortico-subcortical brain atrophy is observed, without evidence of acute processes, space-occupying lesions or other alterations.
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Brain CT showed diffuse cerebral atrophy without evidence of acute alterations (Fig. 1).
Electroencephalogram (EEG) during repeated myoclonus. Background rhythm was slightly slowed, showing a sharp rhythmic discharge predominantly in bilateral fronto-central areas, followed by an outburst with a rhythmic delta activity pattern with overlapping polyspikes.
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EEG showed frequent bursts of acute rhythmic discharges with bilateral fronto-central distribution (Fig. 2), with many of them correlated with myoclonic jerks.