What is the defining characteristic of “red currant jelly” stools?

The defining characteristic of “red currant jelly” stools is that they are pathognomonic for intussusception. This specific type of stool appearance is caused by the presence of blood and mucus in the intestinal lumen that has a consistency and color resembling that of red currant jelly. Intussusception occurs when a segment of the intestine telescopes into an adjacent segment, leading to obstruction and potential ischemia. This process may cause intestinal bleeding, which contributes to the abnormal stool appearance.

The diagnosis of intussusception is critical, particularly in pediatric patients, as it is a common cause of abdominal pain and can lead to serious complications. "Red currant jelly" stools serve as a significant indicator of this condition, prompting further investigation and appropriate intervention. Recognizing this characteristic helps healthcare professionals quickly identify and manage cases of intussusception to prevent further clinical deterioration.