Michael Douglas, David Letterman Michael Douglas, David Letterman

Michael Douglas says he has Stage IV throat cancer, but remained optimistic about a full recovery.

"The percentages are very good. I would hate to say, but right now, it looks like it should be 80 percent, and with certain hospitals and everything, it does improve," Douglas said on The Late Show with David Letterman Tuesday.

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Michael Douglas to undergo chemo for tumor in throat

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