|I||Incarcerated inguinal hernia|
|M||Meckel's diverticulum||Rule of 2s for Meckel's: |
2% of the population
2 feet from the ileocecal valve
2 inches long
2 types of ectopic tissue (gastric and pancreatic)
2 years old at presentation.
2 times more common in boys
|M||Malrotation / midgut volvulus||Corkscrew appearance|
The mnemonic comes from Donald R. Kirks, MD as described in Lane Donnelly's Pediatric Imaging: The Fundamentals.