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: access:2 18g piv's. code status:full code. allergies:none. pt is alert and oriented x3.mae,mobilising to toilet. ls clear,saturating well on ra. in nsr with no ectopy.recieving d5.45ns at 75cc/hr for hydration. soft with pos bs.no more bloody bm.voiding self. visited by 2 sons.updated re by md . procedure: other endoscopy of small intestine endoscopic polypectomy of large intestine closed [endoscopic] biopsy of large intestine open and other sigmoidectomy transfusion of packed cells diagnoses: acute posthemorrhagic anemia hemorrhage of gastrointestinal tract, unspecified benign neoplasm of colon unspecified intestinal obstruction secondary and unspecified malignant neoplasm of intra-abdominal lymph nodes malignant neoplasm of sigmoid colon 

Answer: The patient is high likely exposed to