ana
Much as I would like to say YES, yet another reason to prefer an MRI, the truth remains that there is no test or scan, (not petscan, not MRI, not CT, not ultrasound, etc) that can definitively distinguish between some conditions and cancer. Only a biopsy can do that.
However, Petscans seem to mistake sarcodosis for cancer at an extremely high rate. The old false positive that is the hallmark of Petscans.
See this report
Sarcoidosis - petscan According to Dr. Google, MRIs are the preferred method for tracking sarcoidosis. According to my CCC and ENT, MRIs are the preferred method to check for mets in base of tongue due to the almost 50% false positive rates of petscans for bot cancers.
The majority of doctors and researchers who push Petscans over MRIs in my opinion do not understand just how devastating and worrying getting the false positives are. I understand why they like them, it's "nuclear medicine" and the petscans are all in color and gorgeous while the MRIs are black and white.
Except that an MRI will not show inflammation as cancer, a MRI will not show normal tissue recovering faster than normal and taking in sugar as cancer, etc.
Talk to your doctors about getting MRIs for your husband, it cannot hurt.
Charm