When I had MRIs done, the hospital would not give me the Xray film output to keep. I did need to get them to a specialist though for a short notice appointment and they let me transport them. I never returned them after my appointment was over. Some pretty cool abstractions result from this sort of imagery.

To the OP: I have some xray dupe film that lets you make bigger negatives from smaller negatives and could send you some if you need (If you're in the US for the sake of economical shipping). Develops in anything: xtol, dektol, etc...