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: the patient is an 80 year old retired cardiologist, who presented to his primary care physician earlier this week with complaints of a three day history of mild ataxia and word finding difficulty, which began . he has had progressive mild difficulty with comprehension as well as problem solving and short-term memory. he has had an episode of left eye viral conjunctivitis three weeks ago which gradually cleared over two weeks. past medical history: 1. prostate carcinoma. 2. malignant melanoma resection from the right forearm ten years ago with no history of recurrence. 3. bladder carcinoma in and , low grade with significant serial follow-up. the patient has been negative for recurrence. 4. colon polyps. 5. gout. 6. herpes simplex of the right eye. 7. hypertension. medications on admission: 1. probenecid 500 mg p.o. q. day. 2. trazodone 50 mg p.o. q. h.s. 3. ambien 5 mg p.o. q. h.s. 4. prevacid 30 mg p.o. q. day. 5. lovastatin 20 mg q. day. 6 enalapril 5 mg one p.o. twice a day. 7. paxil 20 mg 1.5 tablets p.o. q. a.m. 8. donnatal one p.o. q. h.s. 9. tylenol 500 mg p.o. q. two hours for relief of headache with arthritis. physical examination: awake and alert, oriented times three with some word finding difficulties. his pupils equally round and reactive to light. extraocular muscles are full. peripheral vision intact. he has a smile symmetric. cranial nerves ii through xii , m.d. dictated by: medquist36 procedure: other operations on extraocular muscles and tendons other excision or destruction of lesion or tissue of brain diagnoses: pure hypercholesterolemia unspecified essential hypertension gout, unspecified personal history of malignant neoplasm of prostate secondary malignant neoplasm of brain and spinal cord personal history of malignant neoplasm of bladder personal history of malignant melanoma of skin 

Answer: The patient is high likely exposed to