"enlarged bilateral internal jugular chain level-II lymphnodes with sub-centimter submandibular lymphnodes (largest measuring 12x10 mm on the left and 10x5.7 on the right)"

I have an MRI for papa. I need to start understanding more of the anatomy and terminology involved specifically with the following in order to determine staging (T2N???):

FIL completed treatment 10/08. CG to father in Law in india who had SCC oral tongue T2N2M0. FIL underwent surgery, neck dissection, IMRT, and erbitux without losing weight or getting nauseated. Completed October 2008. SO far so good.