Final answer:
Actinic Keratoses are precancerous patches on the skin caused by long-term UV exposure which can potentially develop into basal cell carcinoma, the most common type of skin cancer. Early detection and treatment are crucial for preventing the progression to cancer.
Step-by-step explanation:
Actinic Keratoses (AKs) are rough, scaly patches on the skin caused by excessive exposure to ultraviolet (UV) rays, primarily from the sun. These precancerous growths occur on skin that has been frequently exposed to the sun over a long period of time. They are characterized by dry, scaly, or crusty texture and can be reddish, light or dark tan, white, pink, flesh-toned, or a combination of these. Actinic Keratoses serve as a warning sign for potential development into skin cancer, especially into the most common type, basal cell carcinoma. Basal cell carcinoma affects the stem cells in the stratum basale of the epidermis, and though it rarely undergoes metastasis, it can cause significant damage if left untreated. Treatment options for basal cell carcinoma, if caught early, include surgery, cryosurgery, and topical ointments. It is crucial for individuals at risk to monitor any changes in their skin and seek medical advice if they detect any suspicious lesions.