Question: A 40-year-old man was admitted to the emergency room owing to a hemorrhagic anal mass that occurred while straining during defecation. The hemorrhagic anal mass was observable on initial examination, because it extended beyond the anus (Figure A). It was not painful and could not be reduced manually. Upon physical examination, the patient’s abdomen was soft and nontender. Past history revealed that 4 years ago, the patient underwent a small bowel segmental resection for intestinal obstruction at another hospital.