Intramedullary and retroperitoneal melanocytic tumor associated with congenital blue nevus and nevus flammeus: an uncommon combination of neurocutaneous melanosis and phacomatosis pigmentovascularis--case report, Kurokawa R, Kim P, Kawamoto T, Matsuda H, Hayashi S, Yamazaki S, Hatamochi A, Mori S, Shimoda M, Kubota K, Neurol Med Chir (Tokyo), 53(10), 730-734, 2013年10月