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Article snippet: WASHINGTON — Senator statement from the Mayo Clinic. Mr. McCain, 80, has a glioblastoma, one of the most common but also one of the most malignant brain tumors. It can be treated with chemotherapy and radiation, but medical experts said it almost always grows back. Mr. McCain’s office said he was recuperating at his home in Arizona and “appreciates the outpouring of support he has received over the last few days.” His office said Mr. McCain would decide when to return to the Senate as he consults with his medical advisers. Medical experts said the type of tumor Mr. McCain has is particularly aggressive. The median survival of a glioblastoma is about 16 months, said Eugene S. Flamm, chairman of neurosurgery at Montefiore Hospital in the Bronx. Senator Edward M. Kennedy of Massachusetts died in 2009 from the same kind of aggressive brain tumor. Mr. McCain learned of the tumor after undergoing surgery late last week at the Mayo Clinic Hospital in Phoenix to remove a blood clot above his left eye. Mr. McCain, the son of a prominent family dedicated to military service, has been in American life since the 1960s. He was the public face of the mistreatment of American prisoners at the North Vietnamese camp known as the Hanoi Hilton, where as a Navy pilot he was confined and tortured for over five years. Decades later, he was the happy-go-lucky captain of the Straight Talk Express, the campaign bus where he cultivated his image as a candid political maverick in his faile... Link to the full article to read more