• Rare in adults: 1-5% of mechanical bowel obstructions
  • In adults, it typically is due to a pathologic lead point which is pulled through by peristalsis and prolapses into the affected bowel.
    • 50% of these lead points are malignant
    • More common in HIV/AIDS patients due to high incidence of infectious/neoplastic abd processes
  • Classified by etiology:
    • Polyp
    • Lymphoma
    • Other malignancy
    • Meckel’s diverticulum
  • Presentation:
    • Intermittent abdominal pain
    • Intermittent obstruction
  • Diagnosis:
    • KUB may show partial or full obstructing mass
    • CT often diagnostic
  • Treatment: surgery!