President Carter melanoma explained San Diego dermatologist Dr Melanie Palm Dermatologist and cosmetic surgeon Dr. Melanie Palm of discusses the new metastatic melanoma (stage IV) diagnosis of President Jimmy Carter. Metastatic melanoma occurs when melanoma has spread from the original site (98% of which is a skin lesion) to a distant organ such as the brain, lung, liver, bone, or small intestine by way of transit from the lymphatics or blood vessels. Melanoma is 100% curable if caught early and treated with surgical excision. The long term prognosis for metastatic, stage IV melanoma is poorer, with only an approximately 20% survival rate at 5 years following diagnosis. President Carter's melanoma was first found during a biopsy of a liver lesion found during surgery. More recently, 4 metastatic lesions were found on the brain. His treatment will include an antibody - immune therapy called Keytruda, which recruits portions of his own immune system to fight the cancer. He also will undergo radiation treatment for the brain lesions, which are palliative, meaning they will help with symptoms but are not curative. For more information, contact Art of Skin MD in San Diego, CA at 858.792.7546.