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: past medical history: hypertension. high cholesterol. seizure disorder. left thumb neuropathy. allergies: no known drug allergies. medications on admission: aspirin 325 p.o. q.d., zantac 150 p.o. b.i.d., keppra 1000 mg p.o. b.i.d., glucophage 500 mg p.o. q.a.m., 1000 mg p.o. q.p.m., lisinopril 20 mg p.o. q.d. physical examination: vital signs: he was afebrile with stable vital signs. general: he was in no apparent distress. lungs: clear. heart: regular. abdomen: soft, nontender, nondistended. bowel sounds positive. extremities: warm and well perfused. laboratory data: all within normal limits. hospital course: the patient was taken to the operating room on , for a thoracic aneurysm repair. please see the operative report for further details. the patient was transferred to the csiu postoperatively and did well. he was weaned from the ventilator and extubated. he was given cardiac pressors in order to enhance his blood pressure which was slowly weaned off, and the patient's blood pressure was stabilized. he was started back on all of his preoperative blood pressure medications. the patient continued to do well and was ultimately transferred out of the cs ru and was transferred to the floor. the patient had an epidural placed for the operation which was removed postoperatively. after removal of the epidural catheter, the patient had episodes of bradycardia and headache. the patient was reconsulted, and it was decided that the patient had a small csf leak. he was offered a patch for treatment of this; however, his headache resolved, and the leak resolved as well, and it was decided that the patient would not need further treatment. his beta-blocker was stopped at that time for reason of his bradycardia. physical therapy was consulted, and it was deemed that the patient could go home. by that time, he was medically stable. the patient continued to do well from a medical standpoint and was cleared by physical therapy. the patient also underwent an mra of the aorta in order to evaluate for further dilatation. these results are still pending at the time of discharge. the patient was discharged on postoperative day 6 after his chest tubes and wires were removed, as well as his foley catheter. the patient was discharged in stable condition. discharge medications: colace 100 mg p.o. b.i.d., aspirin 325 p.o. q.d., zantac 150 p.o. b.i.d., keppra 1000 mg p.o. b.i.d., glucophage 500 mg p.o. q.a.m., 1000 mg p.o. q.p.m., lisinopril 20 mg p.o. q.d., he was given pain medications tab p.o. q.4 hours p.r.n., as well as oxycodone. condition on discharge: the patient was discharged in stable condition. discharge diagnosis: 1. thoracic aneurysm status post thoracic aortic aneurysm repair. 2. hypertension. 3. high cholesterol. 4. seizures. 5. left thumb neuropathy. fop: he was instructed to follow-up with his primary care physician weeks, his cardiologist in weeks, and with dr. in weeks. , md 2351 procedure: resection of vessel with replacement, thoracic vessels diagnoses: pure hypercholesterolemia unspecified essential hypertension thoracic aneurysm without mention of rupture other convulsions other nervous system complications other specified surgical operations and procedures causing abnormal patient reaction, or later complication, without mention of misadventure at time of operation reaction to spinal or lumbar puncture 

Answer: The patient is high likely exposed to