Enteo-enteric fistula is seen in: March 2011
**Core Concept**
Entero-enteric fistula refers to an abnormal connection between two segments of the small intestine or between the small intestine and the large intestine. This can lead to complications such as malabsorption, diarrhea, and weight loss. The development of entero-enteric fistula often involves a combination of factors including surgical complications, infections, and underlying conditions like Crohn's disease.
**Why the Correct Answer is Right**
The formation of entero-enteric fistula is often a result of an inflammatory process that leads to tissue damage and fistula formation. Conditions like Crohn's disease can cause chronic inflammation in the gastrointestinal tract, leading to the formation of fistulas. In some cases, surgical complications such as anastomotic leaks can also result in entero-enteric fistula formation.
**Why Each Wrong Option is Incorrect**
**Option A:** Ulcerative colitis is a type of inflammatory bowel disease that primarily affects the colon, making it less likely to cause entero-enteric fistula.
**Option B:** Diverticulitis involves inflammation of diverticula in the colon, which is not typically associated with entero-enteric fistula formation.
**Option C:** Irritable bowel syndrome (IBS) is a functional disorder of the gastrointestinal tract, and it is not typically associated with the formation of entero-enteric fistulas.
**Clinical Pearl / High-Yield Fact**
Crohn's disease is a significant risk factor for the development of entero-enteric fistulas, and it is essential for clinicians to be aware of this association when managing patients with Crohn's disease.
**Correct Answer: C. Crohn's disease.**