Medically reviewed by William Truswell, MD Actinic cheilitis (AC) is a precancerous lip lesion caused by ultraviolet (UV) exposure from the sun or indoor tanning beds. Lips may become very dry, ...

lips, ears, scalp, neck, forearms, and back of the hands. These are the areas most commonly exposed to sun. Are Actinic Keratoses Deadly? AKs may be an early sign of squamous cell carcinoma ...

Cutaneous squamous cell carcinoma (SCC) and inflammation of actinic keratosis (AK) were reported in 2 patients treated with sorafenib (Lacouture et al), but the scope of this observation has not ...