My dad had surgery in January 2013, had great margins but had to do two rounds of adjuvant chemo after surgery. He just finished one chemo round in early March and scheduled for his last one in April 2013. His oncologist would like to order a pet/ct scan after he completes that last chemo session. That would be about 3 months post surgery and probably one week after he finished his last chemo session. I am debating on advising my dad to delay the petscan and just doing a ct scan given that the pet scan can show false positives. He is still in recuperating mode from his surgery so I expect there would be some inflammatory that would show up on the petscan. I just don't want unnecessary worry if not needed and maybe wait a few more months when his body has finally recoop from surgery and the last chemo session. Your thoughts would be greatly appreciated!