Abdominal pain is a common chief complaint seen in the emergency department (ED), both in adult and pediatric populations. In pediatric emergency medicine, one diagnosis that is often considered is intussusception; in adult emergency medicine, this is typically less common. The classic teaching in adults is that the most common cause of intussusception is malignancy. In the following case report, however, the etiology of intussusception was not from malignancy but rather idiopathic. This case report describes an elderly female presenting to the ED for abdominal pain, nausea, vomiting, and hematochezia. She underwent abdominal imaging with findings concerning for intussusception; this necessitated urgent operative intervention. She was found to have ileocolonic intussusception. Tissue biopsy was sent for analysis to evaluate for malignancy. This was negative. While emergency physicians often keep intussusception high on their list of differential diagnoses when dealing with pediatric patients with abdominal pain, it is rarely considered in the adult population. Abdominal pain is one of the most common chief complaints seen in emergency medicine. Intussusception should definitely be considered as this could be the etiology of abdominal pain and, in rare circumstances, the potential etiology for an acute abdomen.
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