Mongolian blue spots, also known as slate gray nevi, are a type of pigmented birthmark. They’re formally called congenital dermal melanocytosis. These marks are flat and blue-gray. They Author: Ann Pietrangelo And Kristeen Cherney. Slate grey nevus (congenital dermal melanocytosis, Mongolian spot) is a benign, flat, congenital birthmark, with wavy borders and an irregular shape. In , it was described and named after Mongolians by Erwin Bälz, a German anthropologist based in Japan, who erroneously believed it to be most prevalent among his Mongolian toermalijn.infolty: Dermatology.
Jun 01, · The Mongolian spots in the adult are flat, round or oval, rather ill-defined macules which are blue-gray, slate, or steel blue in color. The majority of the spots are uniformly pigmented though at times speckled. In 22 cases the bluish macules were superimposed with groups of Cited by: Mongolian blue spots are common among persons who are of Asian, Native American, Hispanic, East Indian, and African descent. The color of the spots are from a collection of melanocytes in the deeper layers of the skin. Melanoctyes are cells that make the pigment (color) in the skin. If there are.
Doctors give trusted, helpful answers on causes, diagnosis, symptoms, treatment, and more: Dr. Ferguson on mongolian spots in adults: Cafe au lait spots are linked to .