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: history of present illness: 65-year-old woman who presents with left leg weakness. the patient was found to have a stenosis of the brachiocephalic artery on an mra/mri. mri of the entire spine was obtained by her pcp for suspicion of disc disease. the rationale for pursuing of an mra is unknown. she saw dr. from vascular surgery who referred her to dr. . he performed an angiogram and confirmed the stenosis. on , a stent was placed but afterwards she developed flaccid left hemiparesis of arm and leg. she was taken back to angiography where she had another stent placed for "another blockage." the radiology report of the angio states that there was an apparent narrowing of the proximal common carotid artery. it was felt that the patient had developed a flap distal to the site in the common carotid artery. she received three further stents of the carotid. afterwards, dr. states that her left sided weakness resolved. after the second visit to the angio suite, the patient says she developed a drop in hematocrit, requiring three units of packed red blood cells. she does not know if she had a hematoma. before discharge, the patient said she still had some weakness which significantly improved but she also developed left leg numbness while in the hospital which progressively worsened after she was discharged. she came to the emergency department because the numbness has worsened to the point where she felt the leg feels "dead". she is walking without support but she leans to the left and is not steady. past medical history: 1) restless leg syndrome 2) duodenal ulcer medications: coumadin-started after the stent plavix klonopin social history: the patient lives with two sons. independent in activities of daily living. no tobacco or etoh. on physical examination, blood pressure 140/70, heart rate 70 and regular. the patient appeared comfortable. op clear, right carotid bruit, no jvd, no thyromegaly. cardiac examination was notable for a regular rate and rhythm. chest was clear to auscultation, and abdomen was benign. no clubbing, cyanosis, or edema of the extremities. on neurological examination, mental status: the patient was awake, alert, and oriented times three. the patient stated the months of the year backwards and forwards. language testing demonstrated normal naming of high and low frequency objects, good repetition. normal fluency and comprehension. the patient could write a sentence to dictation. memory: registered and recalled objects at one and five minutes. calculations were normal. the patient could demonstrate how to strike a match, light a cigarette, puff it, throw it to the ground, and stamp it out. cn: optic disks were normal. perrla, eomi, vfftc, v1-v3 intact to light touch and to pinprick. face, tongue, palate, scm move symmetrically. hearing intact to finger rub bilaterally. motor: normal tone and bulk. no pronator drift. no asterixis. d b t we wf fe ff io ip h q g at r 5 5 5 5 5 5 5 5 5 5 5 5 5 5 l 5 5 5 5 5 5 5 5 3 4 5 5 4 4 sensory: lt and pp severely reduced on the left leg compared to the right. poor jps of the left toe. there is no sensory level. reflexes: b, t, br, patella, ankle plantar r 3 3 3 3 2 down l 3 1 2 2 2 down coordination: , , ffm were normal. romberg maneuver was negative. gait: she does lean to the left. labs: inr 1.4 assessment and plan: 65-year-old woman who developed left sided weakness and left common carotid artery stenosis found to have common carotid artery dissection requiring further stents. on examination she has umn weakness in the left leg with concurrent sensory loss. given the clinical setting, the most worrisome possibility is a stroke. the vascular distribution would be aca territory (unusual compared to mca). if imaging is negative, then the second possibility is lumbar disc disease, although the history is not consistent. recommendations: 1) mri with dwi, mra of the brain. if stents are prohibitive, then proceed with ct and cta (of neck as well) if renal function allows. 2) if imaging negative, then we should consider imaging of the l-spine. 3) her coumadin needs to be continued and brought up above 2.0 given the dissection. dr., 13-224 dictated by: medquist36 procedure: angioplasty of other non-coronary vessel(s) arteriography of cerebral arteries arteriography of cerebral arteries insertion of non-drug-eluting peripheral (non-coronary) vessel stent(s) insertion of non-drug-eluting peripheral (non-coronary) vessel stent(s) diagnoses: anemia, unspecified tobacco use disorder congestive heart failure, unspecified cardiac complications, not elsewhere classified anxiety state, unspecified other specified cardiac dysrhythmias iatrogenic cerebrovascular infarction or hemorrhage peptic ulcer of unspecified site, unspecified as acute or chronic, without mention of hemorrhage or perforation, without mention of obstruction occlusion and stenosis of other specified precerebral artery without mention of cerebral infarction 

Answer: The patient is high likely exposed to