Mikhail Gorbachev is easily identified in photographs by a distinctive large red mark on his head. The patch is actually a birthmark — a capillary naevus — which is present from birth. One in 10 ...
Naevus of Ota, originally described by Ota, 1 is a hamartoma of dermal melanocytes. Naevi of Ota and Ito occur most frequently in Asian populations. Other ethnic groups with increased prevalence ...