Tiny patient, big challenge: pancreatic heterotopia causing ileo-ileal intussusception in an infant

J Ultrasound. 2025 Mar 25. doi: 10.1007/s40477-025-01006-x. Online ahead of print.

Abstract

Background: Intussusception is a common cause of intestinal obstruction in children, typically occurring between 6 months and 3 years of age. While most cases are idiopathic, rare cases involve pathological lead points. Ileo-ileal intussusception is an uncommon variant, often associated with anomalies such as heterotopic pancreatic tissue.

Case presentation: We report a rare case of a 2-month-old infant presenting with inconsolable crying and feeding refusal, diagnosed with ileo-ileal intussusception due to pancreatic heterotopia. Ultrasound confirmed the diagnosis, leading to successful surgical resection of the affected ileal segment, with an uneventful recovery.

Conclusion: This case emphasizes the importance of considering intussusception in younger infants with nonspecific symptoms. Early imaging, particularly ultrasound, plays a critical role in timely diagnosis. Though rare, pancreatic heterotopia can act as a pathological lead point, highlighting the need for awareness and prompt surgical intervention to optimize pediatric patient outcomes.

Keywords: Ectopic pancreatic tissue; Intussusception; US; Ultrasound; X-ray.