With an approximate four-year risk of evolving into basal cell carcinoma (BCC) or squamous cell carcinoma of 1.6% and 2.6%, respectively, these lesions are considered to be premalignant. The exact pathogenesis of AK is unknown. However, general risk factors for the development of AK are numerous and well-established.

The exact pathogenesis of AK is unknown, but general risk factors for the development of AK are numerous and well-established [Image: Shutterstock].

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