My sister just had a dime sized growth on her back removed, and it is thought to be cancerous. She discovered it first in August and thought it was a cyst, but went to the dermatologist and had it removed and subsequently biopsied. It was about penny sized, raised on her skin, and the attachment to the skin was dime sized. The edges around the growth were slightly raised. She is waiting on her test results. Could you offer any insight into what type of skin cancer this may likely be? This doesn't seem to fit the textbook definitions I have read about.