Nam et al reported a simple classification scheme for a patient with nevus of Ota. The authors are from Samsung Hospital and Sungkyunkwan University in Seoul, South Korea.
Patient selection: nevus of Ota
Measurement: percentage of half-face (left or right) affected
Area on Half Face
<= one third
(more than one third) AND (<= two thirds)
> two thirds
• The severe category was seen in 13% of Korean patients.
• There is no designation for bilateral disease.
• The scheme does not match trigeminal nerve distribution.
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