It is not impossible to have an HPV positive lesion in the anterior mouth. Having said that it is exceptionally rare. I am going from memory on a conversation with Gillison 6 months ago, but I think she said she had only seen two EVER.
Brian, stage 4 oral cancer survivor. OCF Founder and Director. The first responsibility of a leader is to define reality. The last is to say thank you. In between, the leader is a servant.