Kudos david... um firstly the only virus I know of that is associated with Oral cancer is HPV. Location on your tongue --- HIGHLY UNLIKELY it's HPV related. HPV oral cancer usually is found at the base of tongue (down the throat) or tonsil sometimes there is an occult cancer found in your nodes with no known primary. This can mean one of two things. The initial tumor resolved itself (very rare) or it's hiding - often in the tonsil, and is discovered later.

So either you have cancer or you don't the biopsy will tell you. Your drs commentary? useless. He's playing both sides of the fence. hugs and good luck