Cuboid stress fracture vs. Peroneus longus tendinitis. How can a runner tell the difference?

If you are a runner and you've had pain on the outside of your ankle or the outside of your foot, kind of near the heel you may have been told that you have peroneus longus tendinitis. 

Sometimes peroneus longus tendinitis is the wrong diagnosis. You might actually have a cuboid stress fracture. 

Which one's worse? 
 
Well, I'll tell you that in terms of really destroying your ability to run, definitely an ignored cuboid stress fracture is worse.
 
How can you tell the difference between a cuboid stress fracture and peroneus longus tendinitis? 
 
Well, that's what we're talking about today on the Doc On The Run Podcast.