What skin condition is characterized by pre-cancerous thick, scaly skin due to excessive sun exposure?

Actinic Keratosis is characterized by thick, scaly patches on the skin that arise as a result of prolonged exposure to ultraviolet (UV) radiation from the sun. These lesions are considered pre-cancerous because they have the potential to develop into skin cancer if left untreated. The condition commonly occurs in areas of the skin that receive the most sun exposure, such as the face, ears, neck, scalp, and backs of the hands.

In contrast, melanoma is a type of skin cancer that develops from melanocytes and is not primarily associated with scaly skin lesions. Acne is a common skin condition involving clogged pores and inflammation, and it does not relate to sun exposure in this context. Psoriasis is an autoimmune condition that leads to red, scaly patches on the skin but is not specifically linked to sun exposure in the same way that actinic keratosis is. Understanding the specific characteristics of actinic keratosis is crucial for early intervention and prevention of potential skin cancer development.