I have some white patchiness under my tongue and they are going to do a biopsy on it next week. As it is, they are treating it for thrush, but it's not entirely characteristic of thrush since it doesn't hurt and it won't scrape off. So, they are going to do a biopsy. Are they going to cut a chunk out of my tongue to do the biopsy or are they just going to try to scrape some of this tissue off and work with that?