Dermoscopic "signature" pattern of pigmented and nonpigmented facial actinic keratoses

An 86-year-old man with skin phototype I/II presented with multiple flat, scaly, nonpigmented actinic keratoses (AKs) on the face and scalp (Fig 1, A). A clinically inconspicuous 2-mm scaly pink papule was also noted on the left nasal sidewall (Fig 1, A, inset).