Metastatic balloon cell melanoma A rare differential in the diagnosis of clear cell tumors After the immune system destroys melanoma tumors, visible melanin can be left behind. We tracked tumoral melanosis in a case series of patients on immunotherapy and offer suggestions for how to monitor Melanosis THE ROCKAWAY TIMES Amelanotic Malignant Melanoma: A Case Report Cureus Malignant melanotic nerve sheath tumors in the spinal canal of psammomatous and non psammomatous type: Two case reports