WASHINGTON — The kind of cancer that Sen. Edward Kennedy is fighting is a common, usually incurable form of brain tumor that is very difficult to treat, experts said Tuesday.
About 10,000 cases are diagnosed each year in the U.S., and only about half of those patients survive one year, experts said. After two years, perhaps 25 percent are still alive.
"In general, it's a very grim kind of prognosis," said Robert Laureno, chief of neurology at Washington Hospital Center. "It's a bad kind of tumor."
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