Barrow neurosurgeon Dr. Peter Nakaji explained exactly what kind of brain tumor Sen. John McCain has. He said a glioblastoma originates in the brain -- it's not a metastasis of McCain's melanoma -- and is an aggressive kind of cancer. "It infiltrates, maybe like butter melting into bread," he said. Full story @ https://goo.gl/QfokK9.
(Photo source: Barrow Brain and Spine via YouTube)