Multiple and Superimposed Mongolian Spots in a Caucasian Child

Abstract

Mongolian spots are common birthmarks in newborns and their incidence and prevalence vary considerably between races, being the lowest in caucasian infants. Although traditionally regarded as benign, some reports suggested that extensive and multiple mongolian spots at aberrant locations and persistent beyond early childhood may co-exist with inborn errors of metabolism. However, this association is not well established. Besides, very few cases in literature reported a particular type of superimposed mongolian spots, whose physiopathological mechanism and clinical significance are unknown. We report a case of a 7-months-old caucasian male infant with multiple, extensive and progressive mongolian spots and also a superimposed mongolian spot located on the right hip.