A 3-year-old girl presents with the abrupt onset of colicky abdominal pain

A 3-year-old girl presents with the abrupt onset of colicky abdominal pain,
abdominal distention, and stool with blood and mucus (“ currant jelly” stools).

Physical examination finds a slightly tender, sausage-shaped mass in the right
upper quadrant of her abdomen

Intussusception of the cecum