Whichof the following signs is seen in Crohn’s disease?
**Core Concept**
Crohn's disease is a type of inflammatory bowel disease (IBD) characterized by chronic inflammation of the gastrointestinal tract, which can lead to various extraintestinal manifestations and specific clinical signs. The disease can affect any part of the GI tract from the mouth to the anus, but it most commonly affects the terminal ileum and the beginning of the colon.
**Why the Correct Answer is Right**
The correct answer is a sign that is commonly associated with Crohn's disease due to the chronic inflammation and fibrosis that occur in the affected area. This sign is a result of the body's attempt to repair the damaged tissue, leading to the formation of scar tissue and narrowing of the intestinal lumen. The correct answer is a classic clinical finding in patients with Crohn's disease.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because it is more commonly associated with ulcerative colitis, another type of IBD. Ulcerative colitis is characterized by diffuse inflammation of the colon, which can lead to the presence of this sign.
**Option B:** This option is incorrect because it is a complication of Crohn's disease, but it is not a specific sign of the disease. This complication can occur due to chronic inflammation and narrowing of the intestinal lumen.
**Option C:** This option is incorrect because it is a sign of a different condition altogether. This sign is typically associated with a different disease process that affects the GI tract.
**Clinical Pearl / High-Yield Fact**
Remember that Crohn's disease can affect any part of the GI tract, but it most commonly affects the terminal ileum and the beginning of the colon. This is why patients with Crohn's disease often present with signs and symptoms related to these areas, such as abdominal pain, diarrhea, and weight loss.
**Correct Answer:** C.