TY - CHAP M1 - Book, Section TI - Colon Cancer A1 - Smith, Mindy A. A2 - Usatine, Richard P. A2 - Smith, Mindy A. A2 - Mayeaux, Jr., E.J. A2 - Chumley, Heidi S. PY - 2019 T2 - The Color Atlas and Synopsis of Family Medicine, 3e AB - A 72-year-old man reports rectal bleeding with bowel movements over the past several months and the stool seems narrower with occasional diarrhea. He has a history of hemorrhoids but now is not experiencing rectal irritation or itching, as with previous episodes. His medical history is significant for controlled hypertension and a remote history of smoking. On digital rectal examination, his stool sample tests positive for blood but anoscopy fails to identify the source of bleeding. On colonoscopy, a mass is seen at 30 cm (Figure 66-1). A biopsy was obtained and pathology confirmed adenocarcinoma. SN - PB - McGraw-Hill Education CY - New York, NY Y2 - 2024/03/28 UR - dermatology.mhmedical.com/content.aspx?aid=1164347861 ER -