Cutaneous Pili Migrans in the Sole of a Pediatric Patient

Cutaneous pili migrans is a rare condition in which a hair shaft migrates under the superficial skin. We report a case in which a 2-year-old boy presented with an unusually shaped long hair strand that had penetrated the epidermis of the sole. We discuss the structure and fragility of skin in children, which may predispose their skin to invasion by a foreign body, viz., a long hair strand. (Korean J Dermatol 2017;55(5):305∼307)