Returned from oral surgeon moments ago. Results of biopsy for the spot that was removed from the underside of my tongue are "mild epithelial dysplasia". It went on to say that margins are clear. Instructions are to do a self exam weekly, continue regular dental visits, and have a 3 month return visit. If there is any change, call immediately for an appointment. I'm very relieved.

Thanks to everyone who provided information and support. This is a fantastic site with such compassionate people. I was ignorant about OC and have learned a great deal in a short period of time.