Catalog

Lumbosacral dermal melanocytosis

No MMS code

Link to WHO Definition

Lumbosacral dermal melanocytosis – http://id.who.int/icd/entity/2059517627

One or more areas of poorly circumscribed slate-brown or blue-black macular pigmentation of the lumbosacral area. The ectopic melanocytes are thought to result from incomplete migration of melanocytes from the neural crest to the epidermis during embryogenesis. The incidence ranges from 90% in babies of oriental ethnicity to less than 2% in babies of European ancestry. The pigmentation tends to fade with age.