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, ...

If left untreated, they can progress to a type of invasive skin cancer called squamous cell carcinoma, which can be fatal (see Table 1). Who Gets Actinic Keratoses? AKs affect more than five ...

Moles are benign (not cancer). Atypical moles can have irregular borders, be different colors, or be asymmetrical (they don’t look the same on all sides). Many actinic keratoses spots. These ...

Immune checkpoint inhibitor therapy for any cancer was associated with a significant reduction of actinic keratoses, according to a study. An area of skin that is chronically exposed to ...