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NCI Dictionary of Cancer Terms


solar keratosis  listen  (SOH-ler KAYR-uh-TOH-sis)

  A thick, scaly patch of skin that may become cancer. It usually forms on areas exposed to the sun, such as the face, scalp, back of the hands, or chest. It is most common in people with fair skin. Also called actinic keratosis and senile keratosis.