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: allergies: patient recorded as having no known allergies to drugs attending: chief complaint: seizure vs tia major surgical or invasive procedure: cerbral angiography embolization of fistula & avm history of present illness: 31 yo male presents with question of seizure vs tia in . having /comprehension troubles past week, now improved but still not at baseline. past medical history: none social history: nonsmoker,occasional etoh physical exam: avss, alert, oriented x3,perrla, eom full, motor all 4 extremities, rrr, no murmer, lungs clear, abdomen soft pertinent results: 05:16pm blood wbc-5.5 rbc-4.35* hgb-14.6 hct-40.4 mcv-93 mch-33.6* mchc-36.3* rdw-12.5 plt ct-212 12:30pm blood pt-13.0 ptt-51.7* inr(pt)-1.1 03:22am blood pt-11.7 ptt-23.5 inr(pt)-0.9 brief hospital course: admitted and went to angiogram for embolization of left dural av fistula. tolerated procedure and was transferred to sicu for close monitoring. sbp was kept below 140 and was on heparin with ptt goal of 50-60. post-procedure was neurologically intact. no groin hematoma. sheath and heparin were dc'd first post op morning. pt had mri/mra, reviewed by dr. . on second post op day pt was discharged to home neurologically intact. medications on admission: dilantin tylenol with codeine prn discharge medications: 1. phenytoin 50 mg tablet, chewable sig: three (3) tablet, chewable po tid (3 times a day). disp:*270 tablet, chewable(s)* refills:*2* 2. oxycodone-acetaminophen 5-325 mg tablet sig: 1-2 tablets po q4-6h (every 4 to 6 hours) as needed. disp:*30 tablet(s)* refills:*0* 3. docusate sodium 100 mg capsule sig: one (1) capsule po bid (2 times a day): while using narcotics. disp:*60 capsule(s)* refills:*2* discharge disposition: home discharge diagnosis: left parietal avm left parietal dural av fistula discharge condition: good discharge instructions: diet as tolerated. avoid driving. contact your md if you develop headaches, fevers > 101, numbness, tingling or weakness in your extremities, or if you have questions. followup instructions: follow up with dr. at in weeks to discuss gamma knife treatment. follow up in 1 month with dr. . ( md, procedure: arteriography of cerebral arteries endovascular (total) embolization or occlusion of head and neck vessels diagnoses: cerebral aneurysm, nonruptured 

Answer: The patient is high likely exposed to