Mystery Diagnosis

Here’s a not so common trauma problem. See if you can figure it out.

A 30 year old male was crossing the street after leaving a bar(!). He failed to notice a speeding SUV, which promptly struck him and sent him flying. He was evaluated as a trauma activation at your hospital, and you scanned his torso. You find this in his chest:

What is it, and what do you need to do about it?

Reply, Tweet, or email your ideas. Answers tomorrow!