Woooow! X-Ray picked up a nip on the bottom left second in pic!
I suspect photoshop!
Yeah, my first reaction when I saw those was that they were too clean to be real, and were likely photoshopped. Still, the page did specify that they're hi-res x-rays, and I imagine it is possible to get that kind of detail- after all, x-rays have been around for a LONG time. My guess is that they are indeed real, but you just rarely see such high-quality images because they're not practical (or cheap) for day-to-day use.
Still, when you think about the fact that the photoscreen needs to be behind the subject, and look at the poses involved, you realize that the photographer had to get rather creative with his setups.