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: allergies: sulfa (sulfonamides) attending: chief complaint: upper gi bleed major surgical or invasive procedure: 1. exploratory laparotomy. 2. excision of small bowel mass with primary anastomosis. history of present illness: 80-year-old gentleman has had a history of a major gi bleed requiring 12 units of blood in . he presented to hospital with more upper gi and lower gi bleeding and was extensively worked up while there. endoscopy had revealed a duodenal mass with an ulceration. this was unable to be controlled endoscopically. furthermore, interventional radiology was unable to embolize this lesion. in that he had now progressed to such a large blood loss and the local surgeon was uncomfortable performing an operation, they requested transfer to and an immediate transfer to took place within a few hours. past medical history: pmh: diverticulosis, upper gi bleed, htn, barrett's esophagus bleed, prostate ca psh: s/p turp c seed implants, s/p prostatectomy, s/p r-cea brief hospital course: mr. was transferred from hospital to under dr. care on for complaints of a duodenal mass and upper gi bleeding requiring large volumes of blood although he was hemodynamically stable. discharge medications: 1. docusate sodium 100 mg capsule sig: one (1) capsule po bid (2 times a day). disp:*60 capsule(s)* refills:*2* 2. lisinopril 20 mg tablet sig: one (1) tablet po daily (daily). disp:*30 tablet(s)* refills:*2* 3. pantoprazole 40 mg tablet, delayed release (e.c.) sig: one (1) tablet, delayed release (e.c.) po q24h (every 24 hours). disp:*30 tablet, delayed release (e.c.)(s)* refills:*2* 4. hydrochlorothiazide 25 mg tablet sig: 0.5 tablet po daily (daily). disp:*30 tablet(s)* refills:*2* 5. percocet 5-325 mg tablet sig: 1-2 tablets po every 4-6 hours. disp:*60 tablet(s)* refills:*0* discharge disposition: home discharge diagnosis: small bowel mass, probable gastrointestinal stromal tumor discharge condition: good discharge instructions: go to an emergency room if you experience new and continuing nausea, vomiting, fevers (>101.5 f), chills, or shortness of breath. also go to the er if your wound becomes red, swollen, warm, or produces pus. if you experience clear drainage from your wounds, cover them with a clean dressing and stop showering until the drainage subsides for at least 2 days. no heavy lifting or exertion for at least 6 weeks. no driving while taking pain medications. narcotics can cause constipation. please take an over the counter stool softener such as colace or a gentle laxative such as milk of magnesia if you experience constipation. you may resume your regular diet as tolerated. you may resume all of your previously prescribed medications. you may take showers. followup instructions: please follow-up with dr. in 3 weeks. please call for an appointment. also, please follow-up with dr. in oncology in 3 weeks. please call procedure: other partial resection of small intestine transfusion of packed cells diagnoses: unspecified essential hypertension acute posthemorrhagic anemia personal history of malignant neoplasm of prostate hemorrhage of gastrointestinal tract, unspecified barrett's esophagus aneurysm of iliac artery benign neoplasm of duodenum, jejunum, and ileum 

Answer: The patient is high likely exposed to