History: 65 year old male presents with sudden onset right hemiparesis and slurred speech.
Single axial CT of the head without contrast reveals a well defined region of hypoattenuation in the left insular cortex with adjacent sulcal effacement and mass effect as evidenced by bulging into the left lateral ventricle
This patient was found to have near complete left internal carotid artery occlusion on a subsequent CT-angiogram of the head and neck. This is a middle cerebral artery stroke.
I am a radiology physician from California, USA.
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