What is the hallmark physical finding in intussusception in children?

The hallmark physical finding in intussusception in children is the presence of a sausage-like mass in the abdomen. This occurs because intussusception involves a portion of the intestine telescoping into an adjacent segment, leading to obstruction and sometimes ischemia. Clinically, this can be palpated as a mass, often described as resembling a sausage, especially in the right upper quadrant or periumbilical area.

This distinctive finding is often accompanied by other symptoms such as abdominal pain, vomiting, and sometimes currant jelly stools due to mixed blood and mucus; however, the sausage-like mass is considered the most indicative physical sign of this condition. Intussusception is a pediatric emergency, and recognizing this finding can lead to prompt diagnosis and treatment, which can prevent serious complications.