No Melanoma, just an irritated Seborrheic Keratosis

So good news, I don't have skin cancer.  Instead it was a common non-cancerous skin growth that can look like a wart, or skin cancer.  Despite their appearance they are harmless. It's something people can get as they get older, thus often called "barnacles of aging."  They can grow anywhere, most often on the chest, back, head, or neck.  They range in color and may have a waxy surface.  You can have just one or several.  They are not contagious.   The exact cause is unknown.  Most generally develop over age 50 and increase in number with age.