PMC4815137_01
(A) Non-contrast head CT (transverse views) shows chronic right anterior cerebral artery (ACA) and middle cerebral artery (MCA) territory encephalomalacia with sparing of a small portion of the medial right frontal lobe, without evidence of bleed or new territory of acute infarction. (B) Both transverse and midsagittal MRI views obtained during an identical clinical episode from 3 years prior were likewise unremarkable for acute pathology.
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F1
STAT non-contrast head computed tomography (CT) was negative for acute intracranial pathology (Figure 1A). A full work-up at that time, including magnetic resonance imaging (MRI) (Figure 1B) and an electroencephalogram (EEG), were unrevealing, with symptoms having resolved approximately 24 h after discontinuing hydromorphone.