Sometimes they include BOT as tongue cancers, which makes it confusing. I don't think they specified. Also, researchers found, going back to research HPV cancers, some records, imaging showed that some HPV oral cancers originally diagnosed as such, were misdiagnosed, and were really oropharyngeal primary cancers, mainly BOT, tonsils. It is said 90 percent SCCHN HPV is in the oropharynx, mainly tonsils, bot. I've seen a number of instances with HPV oral cancer, that had a recurrence in BOT. Makes you wonder if that was the primary all along, and was missed, which does happen. Also, BOT cancer can move forward, and usually not with front tongue cancer moving backward.

Thanks for posting the article, and continuing discussion.