Skin Classification Scheme

A cavernous hemangioma arising from the skin.

Skin cancer that arises in basal cells or squamous cells but not in melanocytes (pigment-producing cells of the skin).

The process by which normal skin cells are transformed into cancer cells.

Cancer that forms in the tissues of the skin. There are several types of skin cancer. Skin cancer that forms in melanocytes…

A sensation of dermal stinging or heat, not necessarily accompanied by redness or physical signs of skin irritation.

Extravasation of blood into the subcutaneous space.