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Arizona Sen. John McCain, the 2008 Republican presidential nominee with a well-known maverick streak that often vexes his GOP colleagues, has been diagnosed with a brain tumour, his office said in a statement Wednesday.
The 80-year-old lawmaker has glioblastoma, an aggressive cancer, according to doctors at the Mayo Clinic in Phoenix, where McCain had a blood clot removed from above his left eye last Friday. The senator and his family are reviewing further treatment, including a combination of chemotherapy and radiation.
"Subsequent tissue pathology revealed that a primary brain tumour known as a glioblastoma was associated with the blood clot," his office said in a statement.
The tumour digs tentacle-like roots into normal brain tissue. Patients fare best when surgeons can cut out all the visible tumour, which happened with McCain's tumour, according to his office. That isn't a cure; cancerous cells that aren't visible still tend to lurk, the reason McCain's doctors are considering further treatment, including chemotherapy and radiation.
The senator and chairman of the Armed Services Committee had been recovering at his Arizona home. His absence had forced Majority Leader Mitch McConnell, R-Ky., to delay action on health care legislation. McCain had been slated to oversee debate of the sweeping defence policy bill in the coming weeks.
