PicatoListen to pronunciation(pih-KAY-toh)A drug applied to the skin to treat actinic keratosis (thick, scaly growths on the skin that may become cancer). Picato may help kill abnormal cells. It is a type of cytotoxic agent. Also called ingenol mebutate gel.Search NCI's Dictionary of Cancer TermsStarts withContainsBrowse:ABCDEFGHIJKLMNOPQRSTUVWXYZ#