1 Dermatology Unit, U.O.C. Dermatologia e Centro Angiomi, IRCCS Istituto Giannina Gaslini, Via Gerolamo Gaslini, Genova, Italy. Electronic address: astridherzum@yahoo.it.
2 Dermatology Unit, U.O.C. Dermatologia e Centro Angiomi, IRCCS Istituto Giannina Gaslini, Via Gerolamo Gaslini, Genova, Italy.
3 Fetal and Perinatal Pathology Unit, U.O.C. Anatomia Patologica, IRCCS Istituto Giannina Gaslini, Via Gerolamo Gaslini, Genova, Italy.
4 Fetal and Perinatal Pathology Unit, U.O.C. Anatomia Patologica, IRCCS Istituto Giannina Gaslini, Via Gerolamo Gaslini, Genova, Italy. Electronic address: valeriovellone@gaslini.org.