A Rare Cause of Small Bowel Intussusception: Non-Meckel Diverticula in an Adult Patient.

Intussusception involves telescoping of a proximal bowel segment into a distal segment. Non-Meckel small bowel diverticula are rare and typically asymptomatic. We report a 37-year-old man with Crohn's disease presenting with persistent abdominal pain despite normal colonoscopies and inflammatory markers. Magnetic resonance enterography and capsule endoscopy revealed concentric small bowel thickening; double-balloon enteroscopy identified a large diverticulum in the ileum. Surgical resection was performed, with pathology revealing non-Meckel diverticula, and symptom resolution postoperatively. This case underscores the importance of advanced imaging in diagnosis and consideration of small bowel diverticula in the differential diagnosis for abdominal pain.