Video 1
This video shows a 75-year-old male exhibiting involuntary, rhythmic contractions of the abdominal muscles, predominantly on the right side, consistent with abdominal myoclonus.
Figure 1
Computed tomography angiography (CTA) of the head and neck and brain magnetic resonance imaging (MRI).
(A) Axial CTA of the neck showing soft plaque with up to 50% stenosis at the left carotid bulb/proximal left internal carotid artery, (B) Coronal CTA of the head showing A2 segment of the left anterior cerebral artery (ACA) stenosis and left medial cerebral artery (MCA) irregularities, (C) Diffusion-weighted imaging (DWI) showing acute left anterior cerebral artery (ACA) infarction involving the frontoparietal regions, including the precentral gyrus.