- 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!