Constipation and Weight Loss in a Honduran Immigrant

Question: A 60-year-old man with an unremarkable past medical history presented with a 6-month history of abdominal pain, constipation, and a 20-pound weight loss. He also complained of intermittent, painless rectal bleeding. The patient emigrated from Honduras to the United States 26 years before presentation and had not traveled outside of the United States since. On examination, he seemed to be chronically ill and had mild epigastric...