Consider the following medical report that includes the patient's historical health records. Use it to predict the disease that the patient is high likely exposed to. 

 Medical Report: pt states she has no known allergies. procedure: arteriography of cerebral arteries endarterectomy, other vessels of head and neck diagnoses: sciatica anemia, unspecified unspecified essential hypertension hyposmolality and/or hyponatremia hypopotassemia occlusion and stenosis of carotid artery without mention of cerebral infarction 

Answer: The patient is high likely exposed to