Sirona,
This has been a good and informative thread, thank you for starting it.
Folks, Melanoma is nothing to fool with. It does not always arise from pigmented nevi (moles). It WILL spread to other body structures and it CAN kill you.
Basal Cell and Squamous Cell Cancers are usually localized and are fairly easy to treat, if found early enough. But it is not always quite that simple. Both types have various subtypes, some more aggressive than others. These may need to be treated with specialized skin surgery called MOHS Surgery. Regardless of the type, skin cancers should be surgically excised.
Actinic keratosis are pre-cancerous skin changes. They are treated with Liquid Nitrogen, or for skin areas that are widely affected topical 5FU (a chemotherapy drug).
Any mole that changes in size, shape, color or a mole that itches or bleeds should be checked out by a Dermatologist. Areas that are crusty, have a sandpaper feel, pink or white pearlized areas need to be checked. If you have alot of moles or sustained sunburns as a child or have had a great deal of sun exposure (especially in sunny areas, ie Southern US/ Arizona/California) see a Dermatologist for a skin exam. Anyone who has had a skin cancer should see their Derm for an annual skin exam. Once you have had a skin cancer you are at high risk for developing more. If you have been diagnosed with a Melanoma, immediate family members (siblings/children) should also have skin exams as they are at higher risk.
Dermatologist are specialy trained to diagnose and treat diseases of the skin. Please do not let your Family doctor, GP, or OB/GYN, etc. play dermatologist.
Lori, RN
(of the Four years of Derm experience class)