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: 1. l4-5 laminectomy. 2. left rotator cuff repair. 3. left orchiectomy for "fibrous epididymitis". 4. history of left lung pneumonia in . 5. history of left chest shingles in . medications on admission: 1. pantoprazole 40 mg q. day. 2. metoprolol 50 mg b.i.d. 3. morphine p.r.n. 4. lorazepam 0.5 mg t.i.d. p.r.n. 5. fentanyl 25 mcg patch. 6. ceftriaxone 1 gram q. day. 7. metronidazole 500 mg t.i.d. allergies: no known drug allergies. social history: he has worked as a construction worker for the past 30 years. he lives in with his significant other. family history: his mother has hypertension and his father has prostate cancer. physical examination: temperature 100.3 f, heart rate 92, blood pressure 140/90, respiratory rate 18. he was a jaundiced man in no acute distress. pupils are equal, round and reactive to light and accommodation. extraocular muscles are intact. scleral icterus. oropharynx clear. neck was supple without lymphadenopathy. heart was regular rate and rhythm with normal s1, s2. there are no murmurs, rubs, or gallops. lungs were clear to auscultation and percussion bilaterally. the abdomen was soft and distended. there was tenderness in the epigastric and right upper quadrant. there are active bowel sounds. there is no evidence of rebound or guarding. there is no cva tenderness. extremities are without cyanosis, clubbing or edema. there are 2+ peripheral pulses bilaterally. he is alert and oriented to person, place and time. cranial nerves ii through xii are intact. motor strength was 5/5 times four extremities. sensation was intact to light touch. laboratory: white count 14.1 with 57% neutrophils, 3% bands, 11% lymphocytes, 9% monocytes, 18% atypicals, hemoglobin 13.7, platelets 129. pt 13.2, ptt 34.8. sodium 134, potassium 4.5, chloride 95, bicarbonate 15, bun 21, creatinine 0.7, glucose 40. alt 314, ast 413, alkaline phosphatase 1,087, total bilirubin 11.9, albumin 2.8, calcium 8.4, phosphorus 2.0, magnesium 2.0. hospital course: mr. is admitted to this hospital for further management of his disease. he underwent an ercp which demonstrated cholangitis, choledocholithiasis. his gastric mucosa was biopsied. he had a successful sphincterotomy with successful extraction of small stone fragments and sludge. pathology of his gastric biopsy and bone marrow biopsy demonstrated a monoclonal population of cells which were positive, surface cd3 negative, cytoplasmic cd positive, cd56 positive, weekly cd2 positive, cd20 negative. these biopsy findings were consistent with a nk cell lymphoma / leukemia. following his sphincterotomy, he was transferred to the intensive care unit for further management due to concerns of a rising lacticacidosis and hypoglycemia. he remained in the intensive care unit for four days during which time he was treated with intravenous antibiotics and intravenous cortical steroids as well as allopurinol for tumor lysis prophylaxis. his clinical status improved during his icu stay and he was transferred to the oncology service for initiation of chemotherapy. he completed the first course of chemotherapy in-house with a cycle of phosphoamide, dexamethasone, ara-c and cisplatin. he tolerated the chemotherapy well without major toxicities. he did develop some acute upper gi bleeding with melena. an egd was performed and demonstrated no signs of active bleeding. the melena resolved on its own. he was discharged to home in stable condition and close follow up in the clinic was arranged. condition on discharge: good. discharge status: he will follow up in the clinic within two days of discharge for further management. discharge medications: 1. lorazepam p.r.n. 2. oxycodone p.r.n. 3. allopurinol. discharge diagnoses: 1. natural killer cell lymphoma / leukemia status post chemotherapy. 2. obstructive cholangitis status post sphincterotomy. 3. upper gi bleed of uncertain etiology. 4. transient hypoglycemia and lacticacidemia likely secondary to hepatic dysfunction. 5. acute renal failure secondary to intervascular volume depletion. 6. anemia secondary to gi blood loss requiring blood transfusion. , m.d. dictated by: medquist36 procedure: venous catheterization, not elsewhere classified endoscopic removal of stone(s) from biliary tract endoscopic sphincterotomy and papillotomy biopsy of bone marrow endoscopic retrograde cholangiopancreatography [ercp] diagnoses: acidosis unspecified essential hypertension cholangitis acute pancreatitis calculus of bile duct without mention of cholecystitis, without mention of obstruction other malignant lymphomas, intra-abdominal lymph nodes 

Answer: The patient is high likely exposed to