Mongolian spot

Slate grey nevus
Other namesMongolian spot, Mongolian blue spot, congenital dermal melanocytosis,[1] dermal melanocytosis[1]
Infant with slate grey nevus
SpecialtyDermatology

A Mongolian spot, also known as slate grey nevus or congenital dermal melanocytosis, is a benign, flat, congenital birthmark with wavy borders and an irregular shape. In 1883, 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 patients.[2][3][4][5] It normally disappears three to five years after birth and almost always by puberty. The most common color is blue, although they can be blue-gray, blue-black or deep brown.

  1. ^ a b Rapini, Ronald P.; Bolognia, Jean L.; Jorizzo, Joseph L. (2007). Dermatology: 2-Volume Set. St. Louis: Mosby. p. 1720. ISBN 978-1-4160-2999-1.
  2. ^ Die koerperlichen Eigenschaften der Japaner.(1885) Baelz.E. Mittheil.d.deusch Gesell.f.Natur-u-Voelkerheilkunde Ostasiens. Bd.4.H.32
  3. ^ Circumscribed dermal melanosis (Mongolian spot)(1981) Kikuchi I, Inoue S. in "Biology and Diseases of Dermal Pigmentation", University of Tokyo Press, p83
  4. ^ Bernard Cohen (1993). Atlas of pediatric dermatology. Wolfe. pp. 6–17. ISBN 978-1563750199. Retrieved May 17, 2014.
  5. ^ JAMA: The Journal of the American Medical Association, Volume 51. American Medical Association. American Medical Association. 1908. p. 2262. Retrieved May 17, 2014.{{cite book}}: CS1 maint: others (link)