A 44-year-old man presented to the emergency department with a 24-hour history of maroon-colored stools followed by a syncopal episode. He had stable vital signs on presentation and a benign abdominal examination. His initial hemoglobin level was 10.9 g/dL and white blood cell count was 11.87 × 109 /L. An esophagogastroduodenoscopy revealed only mild gastritis.
The following day, the patient underwent a colonoscopy, which showed old and fresh blood throughout the entire colon, 3 small diverticula in the ascending colon, and one 0.8-cm × 1.2-cm sessile polyp in the cecum. Interestingly, intermittent, active bleeding from the appendiceal orifice also was observed (image attached). Radiological investigations His computed tomography scan of the abdomen and pelvis demonstrated a thickened appendix without fat stranding and thickened proximal colon without obstruction (image attached).…
