Which description best characterizes ulcerative colitis?

Which description best characterizes ulcerative colitis?

• A. Continuous colonic inflammation limited to mucosa/submucosa, starting at the rectum.
• B. Transmural inflammation with skip lesions.
• C. Affects the small intestine only.
• D. Autoimmune gluten reaction.

Answer: (A)

Ulcerative colitis is an inflammatory bowel disease that involves the colon with continuous inflammation starting in the rectum and extending proximally, and the inflammation is limited to the mucosa and submucosa rather than the full thickness of the bowel wall. This pattern—continuous involvement, confined to the colon, and superficial in depth—is characteristic and helps distinguish it from Crohn’s disease, which often shows transmural inflammation with skip lesions and can affect any part of the GI tract, including the small intestine. It’s also not a gluten-related autoimmune process, which points to celiac disease rather than UC. So the description of continuous colonic inflammation limited to mucosa/submucosa, beginning at the rectum, best fits ulcerative colitis.

Ulcerative colitis is an inflammatory bowel disease that involves the colon with continuous inflammation starting in the rectum and extending proximally, and the inflammation is limited to the mucosa and submucosa rather than the full thickness of the bowel wall. This pattern—continuous involvement, confined to the colon, and superficial in depth—is characteristic and helps distinguish it from Crohn’s disease, which often shows transmural inflammation with skip lesions and can affect any part of the GI tract, including the small intestine. It’s also not a gluten-related autoimmune process, which points to celiac disease rather than UC. So the description of continuous colonic inflammation limited to mucosa/submucosa, beginning at the rectum, best fits ulcerative colitis.