Krauthammer, who graduated from Harvard Medical School in 1975 despite a first-year diving accident that left him a quadriplegic, explained that he had a malignant tumor removed from his abdomen last August. Although a series of setbacks left him in the hospital in the ensuing months, he believed until recently that he was on the road to recovery.

“However, recent tests have revealed that the cancer has returned,” Krauthammer wrote. “There was no sign of it as recently as a month ago, which means it is aggressive and spreading rapidly. My doctors tell me their best estimate is that I have only a few weeks left to live. This is the final verdict. My fight is over.”