Slide show: Sun damage
Image of actinic keratoses
Previous Next 9 of 10 Actinic keratoses

Actinic keratoses (ak-TIN-ik ker-uh-TOE-seez) appear as rough, scaly patches that can range from tan or dark pink to brown. Also called solar keratoses, these patches are commonly found on the sun-exposed areas of people who have light skin. If left untreated, actinic keratoses may progress to a type of skin cancer known as squamous cell carcinoma.

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