Final answer:
Actinic keratoses are slightly rough, pink, or flesh-colored lesions typically occurring on the face due to long-term sun exposure. They are precancerous lesions of the epidermis and can raise the risk of skin cancer, including basal cell carcinoma and melanoma.
Step-by-step explanation:
Actinic keratoses can be described as d) Slightly rough, pink or flesh-colored lesions on the face. They are a type of precancerous lesion that arises from long-term sun exposure, primarily occurring on areas of the skin that have been most exposed to the sun such as the head, neck, arms, and back. The epidermis is affected by these lesions, and they can sometimes progress to skin cancer if untreated. Actinic keratoses are indicative of DNA damage in skin cells and serve as a warning sign for the potential development of more serious conditions such as basal cell carcinoma or melanoma, the latter being characterized by the uncontrolled growth of melanocytes, presenting as large brown or black patches with uneven borders and a raised surface.