Strange Fear

I was driving down the road the other day, on my way home from work, and came across an interesting billboard. It had a cartoon-like drawing of a person's head with the hair standing on end and the mouth was sort of frowning...needless to say that it was depicting someone who was scared. The rest of the verbiage indicated it was advertising a vertical MRI.
The large bold lettering said: "AFRAID OF CLAUSTROPHOBIA?"...

So, apparently...if I am afraid of the fear of being in confined spaces, this is the MRI for me.

Would the proper medical term be "Claustrophobiaphobia"?

Ponder, my friends.