After getting a clear PET scan we were told the cancer board had been concerned about some thickening in the neck area. After getting hold of the scan results I read that there was an uptake in the piraform sinus of 4.72 and prior to treatment this area was 2.6. When I questioned these numbers I was told it was the result of inflamation (which I understand). My question I am trying to get answered "is thickening in the neck" the same as inflamation or have we been told different things.