Understanding skin cancer -- diagnosis and treatment
How do I know if it's skin cancer?
All potentially cancerous skin growths must be removed to confirm a cancer diagnosis. Depending on the suspected type of skin cancer, the biopsy techniques vary slightly.
Any potential melanoma requires a surgical biopsy, also called excisional biopsy, in which the entire growth is removed with a scalpel. A pathologist then studies the sample under a microscope to determine whether cancer cells are present.