Mishima and Mevorah reported a relatively simple classification for nevus of Ota. The authors are from Wayne State University and Detroit Receiving Hospital in Detroit.
Patient selection: unilateral nevus of Ota
Parameters:
(1) extent
(2) location
Extent
Location
Type
limited (mild)
orbital, upper and lower eyelids
Ia
limited (mild)
zygomatic
Ib
intermediate (moderate)
orbital and zygomatic
II
intensive (extensive, often darker)
intermediate area plus forehead and scalp
III
where:
• Bilateral disease is not classified.
• Color ranges from light brown to gray to blue.
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