Michael Douglas said on Tuesday he had an 80%chance of recovering from advanced throat cancer.
The 65-year-old "Wall Street" actor told TV talk-show host David Letterman that a biopsy indicated that his cancer was at stage IV, which he described as "intense, and so they've got to go at it ..."
Noting that Douglas' revelation drew a gasp from the audience of the New York-based show, Letterman asked whether stage IV was a good diagnosis.
"Um no," Douglas replied, according to a transcript provided by CBS' "Late Show with David Letterman."
"No, you like to be down at stage I ... but it has not -- the big thing you're always worried about is it spreading ... and the expectations are good ...
"The percentages are very good," Douglas added. "I would hate to say, but right now, it looks like it should be 80%, and with certain hospitals and everything, it does improve."
Douglas told Letterman that his cancer was caused by his drinking and smoking.
He said his throat had been bothering him for a while, and a multitude of doctors put him through a battery of tests in the early summer, but had found nothing.
After a summer break, he underwent a biopsy, which revealed his advanced cancer.
He expressed frustration with the doctors who could not find anything, "because I was on it early in the summer and started complaining about something, but they couldn't see it then."
