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Nevus of Ito
Nevus of Ito
Clinical features Nevus of Ito is a very rare condition characterized by unilateral slate blue macular pigmentation in the region supplied by the posterior supraclavicular and lateral brachial cutaneous nerves (Fig. 25.223).1 There may occasionally be a coexistent nevus of Ota2โ4,5 hypopigmentations along Blaschko lines (nevus depigmentosus), and associated Sturge-Weber syndrome.6,7 Exceptionally, malignant transformation has been documented (see malignant blue nevus).8โ10
Fig. 25.223 Nevus of Ito: characteristic discoloration involving the shoulder and scapular regions. By courtesy of M.M. Black, MD, St Thomasโ Hospital, London, UK.