An MRI can be very helpful when you have a strange injury that doesn't seem to fit in any of the common running injury boxes. 

I just had a call from a runner in that very situation. He is someone who has an injury and has something kind of strange going on. 

He actually had an abnormal finding on an MRI from a little more than three years ago. 

At the time that he had that previous MRI that thing that was a little weird on his MRI wasn't really causing a problem, but now his pain is in exactly that same spot.

Today on the Doc on the Run podcast, we're talking about why runners should always get the second MRI at the same imaging facility.