Frontiers Case report: Exceptional disease progression in a 70 year old patient: generalized melanosis and melanuria in the course of metastatic melanoma a case study A Rare Case of Aggressive Melanotic Schwannoma Occurred in Spinal Nerve of a 59 Year Old Male Late onset metastatic melanoma arising from a medium sized congenital melanocytic naevus Indian Journal of Dermatology, Venereology and Leprology Eruptive melanocytic nevi heralding the diagnosis of metastatic malignant melanoma: A case report ScienceDirect