Actinic keratosis: A clinician's guide to diagnosis and treatment.

Actinic keratoses are common premalignant skin lesions caused by chronic exposure to ultraviolet light. Early recognition and effective treatment are key to preventing them from progressing to invasive squamous cell carcinoma. The authors of the article outline an individualized approach for clinicians based on the number of lesions (lesion burden), their surface area (field cancerization), and patient preference.