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: this is a 69 year old male who underwent a left colon, right colon resection, and partial gastric wall resection on for a t2, n0, m0, moderately well-differentiated adenocarcinoma of the colon with 12 lymph nodes all negative for tumor. he was recently noted to have a rise of his cea and on underwent a ct scan of the abdomen and pelvis which demonstrated metastatic disease in segments 4 and 5 of the liver. he was admitted for segmental resection. past medical history: hypertension. colon adenocarcinoma as above. medications at home: cardura 16 mg p.o. q.day atenolol 50 mg p.o. q.day. allergies: no known drug allergies. examination on admission: alert, obese male in no acute distress. no scleral icterus. neck: no lymphadenopathy or thyromegaly. lungs clear to auscultation. cardiac: regular in rate and rhythm, no murmurs. abdominal exam is benign. periphery is warm with no edema. laboratory studies on admission: hematocrit 46.5, white count 7.5, platelets 196, pt 12.9, inr 1.1, sodium 141, potassium 3.8, chloride 104, bicarb 26, bun 11, creatinine 0.8, albumin 4.3, ast 16, alt 18, alkaline phosphatase 73, t- bili 1, glucose 94, afp 3.5, cea 41. hospital course: on the day of admission, , he underwent hepatic resection of segments 4, 5, and part of segment 6. he tolerated the procedure well. post-op he was transferred to the intensive care unit for close followup because of significant blood loss, which was 2700 cc. altogether during his procedure here, he required 8 units of blood and several liters of fluid. his postoperative course is summarized as follows: neuro: initially his pain was controlled with an epidural which was removed on postoperative day 3. his pain is now well-controlled on percocet. cardiovascular: on post-op day 2 in the evening, he developed rapid atrial fibrillation. his rate was controlled with calcium channel blockers, conversion with amiodarone drip failed, and he was electrically cardioverted on postoperative day 3. he has remained in sinus since and is now taking amiodarone p.o. according to the cardiology consult, he will be maintained on amiodarone 200 mg p.o. q.day, and this will be re-evaluated in six weeks and, if stable, will probably be discontinued then. respiratory: remained stable throughout his hospitalization with good saturations on room air. gastrointestinal: his diet was gradually advanced. he is now tolerating a regular diet and having normal bowel movements. genitourinary: his urine output was good throughout his hospitalization. his renal functions remained within normal limits. he was voiding with no difficulty after removal of the foley. infectious disease: his wound is healing well with no signs of infection. his white count is normal and he has remained afebrile. his two - drains which were placed during surgery were found to drain slightly bilious fluid on postoperative day 3. the bilirubin on these drains was 7 and 14. they are therefore left in place and will there and be removed when followed up in clinic in the future. he has been taught how to empty these drains and will be discharged home with vna to follow up on the wound and assist him with drain care. he is discharged home in stable condition with the following recommendations: discharge recommendations: follow up in clinic as scheduled on wednesday. continue medications as listed in the discharge form. follow up with cardiologist in six weeks to reassess need for amiodarone treatment. discharge diagnoses: metastatic colon cancer. status post segmental liver resection, segments 4, 5 and 6. hypertension. atrial fibrillation, status post cardioversion. , md, phd procedure: cholecystectomy atrial cardioversion transfusion of packed cells open biopsy of liver partial hepatectomy diagnoses: malignant neoplasm of liver, secondary cardiac complications, not elsewhere classified atrial fibrillation atrial flutter personal history of malignant neoplasm of large intestine other diseases of lung, not elsewhere classified 

Answer: The patient is high likely exposed to