If melanoma had already spread to the brain whats the survival time untreated?

Brain metastases from Melanoma are fairly common. These come in varied forms in terms of the number and the the size of metastatic tumors. The survival is influenced by the tumor load. If there is a single tumor, it can be removed surgically or treated with Stereotactic radiotherapy which can control such tumors and have considerably longer survival. Survival without treatment is less than 6 mont

Survival time from metastatic widespread melanoma is actually highly variable, as often demise is secondary to liver involvement, and the tendency for brain lesions to bleed could result in rapid death. The prognosis is not necessarily good, and usually quoted is a survival rate under 6 months.