This page has moved. Click here to view page. Single or multiple lesions develop on areas exposed to the sun, such as the face, the backs of the hands, the forearms, the neck, and balding scalp.
Actinic cheilitis denotes scaly or crusted patches of precancer on the vermilion of the lips.
In actinic keratosis, lesions are round or irregularly shaped, erythematous or tan plaques with an adherent scaly or rough surface. They range in size from several millimeters to 1 cm or more. Locally invasive lesions have been reported to develop in 12 percent of patients with actinic keratoses. On histologic examination, the epidermis may be thickened or atrophic. Atypical cells tend to invade the most superficial portion of the An actinic keratosis is usually treated by liquid-nitrogen cryotherapy.