I may have cancer of the tongue, the biopsy (below) reveled squamous cells:

Comment: The specimen contains cytologically bland squamous cells with verrucoid
architecture and pushing border. Immunohistochemistry performed on block A shows
that p16 is negative and p53 is not overexpressed. Ki 67 is mostly in the
basilar layer. HPV 6/11 and 16/18 in situ hybridizations are both negative. PASD
stain reveals no definite fungal elements. The differential diagnosis is broad
and clinical correlation is recommended.

Having already undergone chemo and radiation for neck cancer (2nd pet scan for those cancers came back clean), the doctors thought I was battling severe thrush, or Leukopenia. If it is tongue cancer, would proton therapy be a potential option?