George was taken to Loyola University Medical Center on Friday after he had "not felt real well all week," said archdiocesan spokeswoman Colleen Dolan. Though not ill enough to keep him from his usual work, the cardinal went for a checkup because of chemotherapy he has been undergoing since cancer was found in his right kidney recently.
George is doing well and was expected to be released from the hospital in a few days, likely Wednesday or Thursday, Dolan said.
The cardinal disclosed his new cancer in a statement on March 7. George said he had undergone extensive testing, scans and biopsies that led doctors to agree he should enter a regimen of aggressive chemotherapy. George was diagnosed with urothelial cancer in August 2012, but after chemotherapy the cancer had been dormant for well over a year, according to the archdiocese.
On March 8, the cardinal shared his thoughts with reporters after leading a confirmation service at St. Clement Church in the Park West neighborhood.
"Chemo treatment goes in waves. I'm in a wave where I'm dizzy," he said, laughing. "I'm OK, I feel OK. I'm not in pain or anything."
George told reporters he will continue to attend meetings and gatherings "as long as I am able to do it and I expect to be able to do it." Still, the chemotherapy may at times prevent him from attending some social events since the treatment can weaken his immune system.
"You shouldn't be shaking a lot of hands and stuff like that," he said. "That will cut down a little bit on the public schedule during those four or five days when I'm most prone to infection."
The return of George's cancer came two years after he submitted a mandatory resignation letter to Pope Benedict XVI, required of all Catholic bishops when they turn 75. Popes generally do not accept the resignations when first offered.
When asked March 8 whether Pope Francis may soon accept his retirement, George said he would like to continue working a while longer.