Fact Sheets

Actinic Keratosis (AK)
Actinic keratosis (AK) is a scaly and rough patch of skin caused by years of sun damage. Learn about symptoms and treatment.
Prurigo Nodularis
Skin condition marked by intensely firm, itchy bumps
Basal Cell Carcinoma (BCC)
Basal cell carcinoma accounts for 80 percent of all skin cancers. The cause is damage to the DNA of cells in the epidermis, the top layer of the skin.
Seborrheic Keratosis
A common type of noncancerous skin tumor that resembles a wart and may bleed or be itchy.
Skin Lymphoma
Skin lymphoma is a rare form of skin cancer that is not linked to sun exposure. Learn about symptoms and treatment.
Vitiligo
Vitiligo is a disease that causes patches of skin to lose their color, resulting in white spots. Learn about causes and treatment.
Cutaneous T-cell Lymphoma
Cutaneous T-cell lymphoma (CTCL) is a rare form of lymphoma that can affect the skin, blood, lymph system, and internal organs. Learn about symptoms and treatment.
Skin Cancer
A disease caused by ultraviolet light that comes from the sun’s rays.
Birthmarks
Many people are born with birthmarks. There are a variety of different types, including congenital hemangioma and vascular malformations.
Psoriasis
Psoriasis is a common skin disorder that causes raised plaques of itchy, red skin. Learn about symptoms and treatment.