Interestingly enough, if you Google "sinusitis radiation", Dr. Brook's blog and this thread are the most entries. The last major discussion of this was back in 2008 right when I joined OCF and at the time, sinusitis was the least of my worries

My misadventure with my latest MRI had a silver lining: since the radiologist's computer erroneously told him there were no prior MRI's to compare, he added two sections none of my prior MRI or Petscans did:
[quote]Right Mastoid Sinus: There is some opacification of some of the air cells in the posterior aspect of the right mastoid sinus. This is typically inflammatory in nature
Maxillary Sinuses. there are small air-fluid levels in both maxillary sinuses. This is consistent with acute maxillary sinusitis[/quote]

Of course I did have a wicked cold the week before, but thanks to this post and re reading the 2008 post, I am prepared to discuss this March 1 with my ENT.
Thanks Doc and Brian
Charm