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 female with a past surgical history of low anterior resection of right hemicolectomy for t2n1 rectosigmoid colon cancer in who had recently undergone hemorrhoidal banding ten days prior to admission by dr. . she noted that she was having bright red blood per rectum at 3 pm prior to admission and reported to the emergency department for medical treatment. past medical history: significant for rectosigmoid colon cancer as noted above, status post low anterior resection and right hemicolectomy in . the patient also has a history of gallstones and had undergone cholecystectomy while undergoing lar and right colectomy in . the patient also had a history of breast carcinoma, status post right mastectomy. the patient has a medical history significant for aortic stenosis. allergies: the patient reports no known drug allergies and does not take any medicines at home. physical examination on admission: the patient was afebrile to a temperature of 97.6, slightly tachycardiac with a heartrate of 108, and blood pressure of 106/57 and a respiratory rate of 18, sating 94% on room air. the patient was not in any apparent distress, slightly worried. head, eyes, ears, nose and throat examination was within normal limits with relatively moist mucosa. cardiovascular examination was regular rate and rhythm with s1 and s2, systolic ejection murmur, iii/vi heard. the patient is clear to auscultation bilaterally. abdomen with bowel sounds soft, nontender, nondistended. the patient's rectal examination was significant for gram positive stool. the patient underwent a anoscopy in the emergency department which showed no lesions, no active bleeding and no bloody stool in the vault. there were no peripheral edemas noted at the time. laboratory data: laboratory studies on admission revealed white count of 9.1, hematocrit of 35.8 and platelets of 251, sodium 139, potassium 4.0, chloride 103, carbon dioxide 28, bun 25, creatinine 0.7 and glucose 131. pt/ptt were 12.5 and 26.7 with an inr of 1.0. hospital course: at the time of admission there was no evidence of active bleeding, however, given the history of two bright red blood per rectum episodes at home, the patient was admitted for observation and serial hematocrit checks. the patient was evaluated by the gastrointestinal team on hospital day #2 and given the history of bright red blood per rectum and plans were made to do a colonoscopy on hospital day #3. the hematocrit on the morning of hospital day #2 was 28.9 which was decreased from 35.8, however, was thought to be a reflection of volume resuscitation after two episodes of bleeding on the day of admission and the patient was being carefully monitored with serial hematocrit checks. the patient was transfused 2 units of packed red blood cells with hematocrit levels rising to only a level of 30.0. the night of hospital day #2, the patient had an episode of fainting while sitting at the commode. she was found alert but confused and had blood and clots in the commode. the patient was tachycardiac with blood pressure of 60/40. surgical house staff was called immediately and responded immediately. the patient was put in the trendelenburg position in bed with intravenous fluids being given rapidly. blood pressure responded with intravenous fluid bolus with decrease in tachycardiac. the patient's hematocrit was rechecked and was found to have decreased down to 24.6. the patient was urgently transferred to the intensive care unit for lower gastrointestinal bleeding. on admission to the intensive care unit the patient was transfused 4 units of packed red blood cells. the patient also underwent an anoscopy which showed intact bands on two hemorrhoids in the right lateral and right posterior positions. no active source of bleeding was identified, however, large amounts of blood and clot were seen in the rectal vault. the patient was urgently taken to the angio suite on the morning of hospital day #3. by this time the patient had received 6 units of packed red blood cells and one unit of fresh frozen plasma. however, no active source of bleeding could be identified at the angio suite. the patient returned to the surgical intensive care unit in stable condition and was evaluated by the gastrointestinal staff as well. the patient underwent bedside colonoscopy on hospital day #4 which identified a rectal ulceration with 6 mm in diameter which was adjacent to the area of the recent hemorrhoidal banding. this was thought to be the cause of the patient's rectal bleeding as per the gastrointestinal staff. there was no evidence of active bleeding at the time. the patient was also found to have multiple nonbleeding diverticuli in the sigmoid colon and the descending colon. the patient was continued to be monitored in the intensive care unit setting. serial hematocrit levels were stable and on hospital day 6 the patient was transferred to the regular floor. plans were made to discharge the patient on hospital day #7 and the patient was notified and family arrived to pick up the patient, however, during that afternoon because of an emergent medical condition in the i nor the other members of the team were available when the family arrived. we were indisposed for several hours in the afternoon per this emergent situation and the patient could not wait to be discharged by the surgical house staff and the patient left having signed against-medical-advice. the patient was advised to follow up with dr. and was given his office number to set up an appointment date and time. the patient's prescription for protonix 40 b.i.d. was called into the pharmacy of the patient's choice and was picked up by the patient. discharge condition: signed out against-medical-advice to home. discharge status: good. discharge diagnosis: 1. lower gastrointestinal bleeding secondary to rectal ulceration. 2. hemorrhoids, status post banding. 3. history of rectosigmoid cancer, status post lar and right hemicolectomy 4. aortic stenosis follow up: the patient is to follow up with dr. in his office and the patient was given the office telephone number to arrange an appointment date and time. , m.d. dictated by: medquist36 procedure: colonoscopy arteriography of other intra-abdominal arteries anoscopy diagnoses: aortic valve disorders personal history of malignant neoplasm of breast personal history of malignant neoplasm of large intestine hemorrhage of gastrointestinal tract, unspecified syncope and collapse tachycardia, unspecified diverticulosis of colon (without mention of hemorrhage) ulcer of anus and rectum 

Answer: The patient is high likely exposed to