Liver spots are patches of darkened skin. They develop because of overexposure to ultraviolet (UV) light. Another name for liver spots is age spots.| Cleveland Clinic
Squamous cell carcinoma is the second most common form of skin cancer. People with long-term UV exposure are at risk. Scaly, discolored bumps can be a sign.| Cleveland Clinic
Actinic keratosis (AK) causes rough, scaly skin patches. Without treatment, AK can lead to a skin cancer called squamous cell carcinoma.| Cleveland Clinic