Medicine A 20 year old male presents with mucus and repeated gastrointestinal bleeding. Patient is positive for ANCA. The most likely diagnosis is: A Ulcerative colitis B Crohn's disease C Radiation colitis D Ischemic bowel disease 💡 Explanation A 20 year old male presents with mucus and repeated gastrointestinal bleeding. Patient is positive for ANCA. The most likely diagnosis is: ✓ Correct Answer: A. Ulcerative colitis