Thanks Nelie, for the advice. One thing you mention though, is it not common for new CT's to be done as the tumor shrinks? This is my understanding. However, I didn't expect that it should happen so quickly (one week) which is why I started to think something wasn't right, especially amongst the other inconsistencies. The mass on my husband's neck was very very large going into radiation, as he did not have surgery first. Consequently, the RO did say that throughout the treatment, he would be making changes to the plan as he monitored the progress. I will make sure to talk to the RO tomorrow and hopefully get some clarification.
Michele