@sharing If I was in your situation, I would be very blunt with my dermatologist. Explain your history, and query if they are willing to do a complete check. If they are not, ask why and how you should go about it. They might defer you to your gynecologist.

I have had several types of skin cancer, including amelanotic melanoma [uncolored]. It is an unusual type, and was on my right forearm. I get checked twice a year.
Ginger