Pop Quiz: Hints

No correct guesses yet, but some good tries! Remember, this was a 16 year old male who crashed a motorcycle and sustained liver and spleen injuries. A month after successful nonoperative management, he presents with a single episode of hematochezia. 

Here’s a CT scan taken during the second ED visit:

What’s the problem? Any way to have detected it sooner? What to do now?

Comment or tweet your answers!