Confused

I had a vulva biopsy 2 weeks ago and just had the results which is VIN3, it is suggested I have a vulvoscopy and have an appointment with a general surgeon next week.

im confused, isn’t a vulvoscopy a biopsy of the vulva which I have already had ?

the appointment letter doesn’t say what it’s for but the results letter said arranging a vulvoscopy 

I now have to wait and see what happens when I go to the appointment which is very frustrating 

anyone else had anything similar? X