Well, maybe it wasn't
HPV after all. Second hand smoke is a risk factor that I did have. Grew up in a house where Mom smoked on the couch while we picked out her gray hairs. Continued in college, law school and work with lots of smoky bars and restaurants. Had to fly a lot in the seventies where my "non smoking" seat was right behind or in front of the smoking section with only imaginary barriers on the planes.
Here is a link to one person's lament - sounds like he had a tough time of treatment. I do wish he had suggested joining OCF instead of the ACS action line. Of course he offers zero proof of his supposition outside of hearsay from his doctors.
Smoking caused tongue cancer