أي وصف يميز التهاب القولون التقرحي؟

Which description characterises ulcerative colitis?

1. Continuous from the rectum upward, affecting the inner lining only
2. Patchy inflammation anywhere from mouth to anus
3. Inflammation of all bowel wall layers with fistulas
4. Inflammation confined to the small bowel, completely sparing the colon

Answer: A) Continuous from the rectum upward, affecting the inner lining only. Ulcerative colitis is continuous from the rectum upward and mucosal only, causing bloody diarrhoea. Crohn’s is patchy, can affect any part and is transmural with fistulas and strictures.