I've had what my doctor called an OR biopsy, but the pathology report called it a partial glossectomy. Not sure what is the difference - perhaps the amount of tissue removed?

Find out if they plan on doing "frozen sections" during the procedure. This is where a pathologist examines the tissue removed while you are under, and allows the surgeon to continue removing tissue until you get clean margins. They often use a blue dye with it and this dye will stain abnormal cells.

If they do this, and get clean/wide margins, you may not need another surgery.