AbstractGet full access to this articleView all access options for this article.Get accessReferences1. Happle R Barbi G Eckert D Kennerknecht I . “Cutis tricolor”: congenital hyper- and hypopigmented macules associated with a sporadic multisystem birth defect: an unusual example of twin spotting? J Med Genet. 1997;34(8):676-678. doi:10.1136/jmg.34.8.676