1.Definition C.Metastasis When cancer spreads from its original location Brain to another part of the body,the new tumor has Melanoma cells travel through the same kind of abnormal bloodstream. cells and the same name as the primary tumor. Melanoma Liver (Initial tumor） e.g.,Melanoma黑色素瘤 cancer spreads to the brain,the cancer cells in the brain are actually melanoma cancer cells. The disease is called metastatic melanoma cancer (not brain cancer).When cancer spreads from its original location to another part of the body, the new tumor has the same kind of abnormal cells and the same name as the primary tumor. e.g., Melanoma 黑色素瘤 cancer spreads to the brain, the cancer cells in the brain are actually melanoma cancer cells. The disease is called metastatic melanoma cancer (not brain cancer). 1. Definition C. Metastasis