Actinic keratosis

Actinic keratosis (AK), sometimes called solar keratosis or senile keratosis, is a pre-cancerous area of thick, scaly, or crusty skin. Actinic keratosis is a disorder of epidermal keratinocytes that is induced by ultraviolet (UV) light exposure.

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Source: Wikipedia · Image: Wikimedia Commons · CC BY-SA 4.0

SUNSTOKE

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