Tyler Marion, B.S., M.B.A., Kevin Cao, B.S., Jorge Roman, M.D. Keywords: Chlorotrichosis; Pseudochromhidrosis; Copper toxicity; Green hair; Mercury, Contact dermatitis; Perioral erythema; Erethism; Joker. Notoriously known as Batman’s ultimate adversary, the Joker is considered as one of the most iconic villains in comic book history. He is easily recognized by his trademark green hair, bleached white skin, and cherry red lips; as well as his cynical smile. These traits have remained consistent through the many adaptations and portrayals of the character. Appearing in several films including the Batman (1989), The Dark Knight (2008), and Suicide Squad (2016), the villain’s famous features have a fascinating origin ripe for speculation. The most … Continue reading →