Recurrent obstruction, mass per rectum and diarrhea are seen in a child diagnosis:
**Core Concept**
The question is testing the diagnosis of a condition characterized by recurrent intestinal obstruction, a palpable abdominal mass, and chronic diarrhea in a child. This condition is a classic example of an intestinal anomaly that requires surgical intervention.
**Why the Correct Answer is Right**
The condition described is likely to be an intussusception, a condition where a part of the intestine invaginates into another part, leading to obstruction and potentially ischemic damage. This is often seen in children and can cause a palpable abdominal mass. Diarrhea is a common symptom due to the irritative effect of the intussusception on the intestinal mucosa. The pathophysiology involves the telescoping of the intestine, which can cause a lead point, such as a polyp or a lymphoid hyperplasia, to act as a trigger for the intussusception.
**Why Each Wrong Option is Incorrect**
**Option A:** Hirschsprung's disease is a condition characterized by a congenital absence of ganglion cells in the distal colon, leading to chronic constipation and intestinal obstruction. It does not typically present with a palpable abdominal mass or diarrhea.
**Option B:** Meckel's diverticulum is a congenital anomaly of the small intestine, but it is not typically associated with recurrent obstruction or a palpable abdominal mass.
**Option C:** Crohn's disease is a type of inflammatory bowel disease, but it is not typically characterized by a palpable abdominal mass or recurrent intestinal obstruction in children.
**Clinical Pearl / High-Yield Fact**
The classic triad of intussusception in children consists of abdominal pain, a palpable abdominal mass, and currant jelly stools. This condition requires prompt surgical intervention to prevent ischemic damage and complications.
**Correct Answer:** A. Intussusception.