A 4-year-old Girl with Watery Diarrhea, Progressive Abdominal Pain and Distention

A 4-year-old girl presented to the hospital with progressive abdominal pain and distention after a 1-week history of watery diarrhea. The physical examination showed a body temperature of 36.2°C, a distended abdomen, hypoactive bowel sounds, and diffuse tenderness without rebound pain.

Abdominal X-Ray of a 4-year-old girl with watery diarrhea, progressive abdominal pain and distention
Abdominal X-Ray of a 4-year-old girl with watery diarrhea, progressive abdominal pain and distention

What’s the Diagnosis ?