Ito's nevus

I·to's nevus

Pigmentation of the skin that is innervated by lateral branches of the supraclavicular nerve and by the lateral cutaneous nerve of the arm, caused by the presence of scattered melanocytes in the dermis.
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References in periodicals archive ?
In contrast to the nevus of Ota, the mongolian spot is present at birth and usually diminishes at about the age of 5-7 years.7,8 The lumbosacral area is the common site, whereas the nevus of Ota develops in the skin adjacent to the eye.7,8 Ito's nevus is another dermal lesion distinguishable from the nevus of Ota only by its typical localization on the shoulder, neck, supraclavicular area and upper arm.