Both volvulus and intussusception involve structural obstructions of the ileum and/or colon. Explain the difference between these two types of...

Both volvulus and intussusception involve structural obstructions of the ileum and/or colon. Explain the difference between these two types of obstruction. How do each of these cases present to the emergency room? What would be the initial course of treatment? What is the end result of either type of obstruction if left untreated?