obsolete_incontinentia pigmenti achromians true true Incontinentia pigmenti syndrome Duplication of Orphanet term Use: Orphanet:435 Label: Ito hypomelanosis a dermal melanocytic condition affecting the shoulder area. Nevus of Ito often occurs in association with nevus of Ota in the same patient but is much less common, although the true incidence is unknown. Sirarat Sarntivijai 2.100 Hypomelanosis of Ito Incontinentia pigmenti achromians syndrome DOID:3156 http://emedicine.medscape.com/article/1058580-overview http://www.orpha.net/ORDO/Orphanet_435 Ito's nevus Bloch-Siemans syndrome, nevus of Ito