Sarah here is a study, might be interesting to you.

http://www.jco.org/cgi/content/abstract/24/9/1421

Postradiotherapy Neck Dissection for Lymph Node

My Dad (Sam) at age 69 dx SCC Base of Tongue T1N2C Well-Diff - March 2006.

35 IMRT rads & 3 Cisplatin chemos - Apr-June/06. Nodes shrunk 50% Dr's suggest ND. Negative PET - he declined ND.

March/07 Had Bilateral ND. No Cancer!! Doing Well!