I have just been diagnosed with a T1N1M0 (HPV+) on my right tonsil tissue (I had my tonsils taken out as a kid). I had a MND on the right side of my neck in which they took out 18 lymph nodes, with one being postive. I am scheduled to undergo 33 sessions of IMRT in approximately two weeks. The dosage that they are scheduling me for are the following:

right tonsil area - 70 Gray
Left lymph nodes - 54 Gray
Right Lymph nodes - 60 Gray

Due to the size of the source and only one positive lymph, the local team is saying that I don't need chemo

A couple of questions:

1) Based on the limited information aboveiIs going with IGRT better than going with IMRT (Rapid Arc)? According to the Johns Hopkins web site they state the following "IGRT represents a further evolution of IMRT, meaning that the treatment session is delivered only after checking, on a daily basis and with the patient on the treatment table, the correct position of the target with respect to the machine. At Johns Hopkins this is done by acquiring a CT scan on the treatment table. A more precise treatment delivery implies fewer dose to the normal structures and a higher likelihood of treatment success"

My local facility has the IMRT (Rapid Arc) system so I would have to travel in order to go with a facility with an IGRT based solution.

2) Do the dosages above seem average, high or low based on the limited information above?



50 yr old, male
SCC of Lymph node right side of neck - 6/30/11
Biopsy: 8/23/2011
MND Right side- 9/19/2011 - 18 nodes - 17 clear
T1N1M0 source on right tonsil tissue
HPV+
IMRT 33 sessions started 10/18/11. Finished 12/5/11
No Chemo