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Written by: Ezzeldin Saleh, MD, FAAP. Pediatrician, Franciscan Skemp – Mayo Health System, La Crosse, Wisconsin, USA. Reviewed by : Lee Johnson, MD, FAAP. Pediatrician, Franciscan Skemp – Mayo Health System,La Crosse, Wisconsin, USA.Case Description
A 14-year- old boy comes to clinic with his parents concerned regarding a “white ring” that he recently noticed around one of the moles in his upper back. He is otherwise in good health.
On examination there are no other remarkable findings except for the picture below.

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