Welcome on Board!
I had my MRI done locally and 2 weeks later i had another one done at HSS in NYC.
My first MRI showed problems with my back (which is expected, I had 2 major surgeries done) but it did not "show" problems with my lungs (fluid).
Second MRI showed fluid in a lungs. I gave to them my first MRI films and reports and radiologist said :" How can they miss it, it's right here!".
Another worRAB: you lucky if a GOOD radiologist reaRAB your MRI... perhaps you know how many misdianoses around...
You always can take your pictures to see another opinion, they may read it differently of can send you to more tests to confirm.