Well, they saw something in the MRI that was suspicious in the original tumor area, though be it smaller.
ENT Doctor said that he couldn't tell if it was dead cancer cells or the small possibility of the start of recurrence.

So, he is scheduling me for a biopsy.

Squamous Cell Carcinoma base of tongue
Erbitux 12 wks
IMRT Radiation ended 8/7/12
MRI Cancer live 10/3/12
3 rounds Chemo (Cisplatin, 5FU, ??)
Brachytherapy 7days ended 1/28/13
PET SCAN 4/19/13
70 yr old 8/20/12
Walt