This middle aged male patient had a recent partial stroke affecting the left side of face and left upper limb. The B-mode ultrasound images of the right Common carotid artery show an atheromatous plaque of the lower third of the vessel. This plaque is non calcific and shows no evidence of ulceration. The Color Doppler images of the common carotid artery show no significant obstruction to blood flow in this artery. Possibly, there might have been a small embolic episode some time ago resulting in cerebral ischemia on this side. 
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