What is actinic keratosis?

➢ Premalignant lesion ➢ Because such lesions usually are the result of chronic exposure to sunlight and are associated with hyperkeratosis, they are called actinic (sun-related) keratoses. ➢ The rate of progression to squamous cell carcinoma is small, varying from 0.1% to 2.6% per year. ➢ Most regress or remain stable. ➢ increase in incidence with age and sun exposure