Would someone please answer my ?

So after my 1st biopsy I was told it is melanoma on the right side of my lower back. It was after a mole was removed. Now II am going to my follow up Appt. What can i expect. I am hoping for good news. Say the best case scenario? What is the treatment? I also have another appt on the 31st? What have some of you had? Would someone please answer????