Diagnose this case : [Broken External Image]:http://onlinedermclinic.com/wp-content/uploads/2010/12/0185632_0185632-R1-E001.jpg
A Mongolian spot, also known as "Mongolian blue spot," "Congenital dermal melanocytosis,"[1] and "Dermal melanocytosis" is a benign, flat, congenital birthmark with wavy borders and irregular shape, discovered on and named after Mongolians by Erwin B