Pope Leo XIV’s doctors removed the lower lobe of his right lung after confirming adenocarcinoma, a surgery the Vatican calls successful and free of complications.
The 71-year-old American pontiff underwent the operation Tuesday at Rome’s Gemelli Hospital, where tests during the procedure confirmed lung adenocarcinoma after preoperative screening had already raised concern.
NY Post reporting described a radical removal of the lower lobe of the right lung, with the Vatican later stating the operation went cleanly and without setbacks. The news lands barely 17 months into Leo’s papacy and freezes his public schedule through mid-October.
Gemelli’s chief thoracic surgeon, Dr. Stefano Margaritora, led the team. Leo spent about three hours in the operating room. The surgery itself ran roughly 90 minutes.
He walked into the hospital through the main entrance and waved to well-wishers before the procedure. Afterward, the Vatican said he would recover in a nearby room rather than the usual 10th-floor papal apartment, which is under renovation.
Leo first told the public about the growth during his Sunday noon prayer. He said doctors had found a small, localized nodule measuring less than 3 centimeters and that he would have it removed.
Breitbart carried his fuller account of the discovery and the decision to operate quickly.
Pope Leo XIV said:
“Recently, during some medical tests, doctors discovered a localized nodule in my lung... It was detected at a very early stage and is well localized... I have decided to undergo surgery to have it removed.”
Holy See Press Office director Matteo Bruni said the operation was set for the first days of the week and that expected recovery would run about one week. Leo had no prior public health problems of note and had kept up tennis and swimming.
Tokyo Cardinal Kikuchi Tsutomu saw the pope on Monday and cast the timing as deliberate, not frantic.
Cardinal Kikuchi said:
“He has decided to undergo surgery soon in order to not change his plans for future overseas trips, so there is no need to worry, as it is not an emergency.”
The Vatican canceled all of Leo’s audiences through Oct. 20.
The Washington Examiner reported that Leo arrived at Gemelli on Tuesday morning and was in surgery by afternoon, with the Holy See soon affirming a successful result.
The Vatican medical bulletin was blunt and brief on the outcome.
The Vatican said:
“The surgery was successful, and there were no complications.”
Officials described a “radical” removal of the lobe. They also said doctors were not currently speaking of chemotherapy or other follow-on therapies. That silence leaves the next phase of care unsettled in public view even as the immediate operation is called a success.
Leo still has a planned Nov. 6-17 journey to Uruguay, Argentina, and Peru on the books. The itinerary spans just over 31,000 kilometers, about 19,000 miles, with a dozen flights and two helicopter rides. Oncologists often tell patients not to fly for three weeks after this kind of surgery. The Vatican has given no word on whether the trip remains intact.
The schedule pressure is real. A pope who wanted surgery soon enough to protect future travel now faces the ordinary limits of lung recovery, altitude changes, and long-haul flight rules that do not bend for office or title.
This is not Leo’s first hard medical scare. In 1985, as a young missionary priest in Chulucanas, Peru, he came down with typhoid fever soon after arriving and was hospitalized. He later described that episode in a 2025 interview with Elise Ann Allen for the book “Pope Leo XIV: The Biography.”
Pope Leo XIV said of that earlier illness:
“If this is your sense of humor, Lord, I think you could do a little better.”
He also said the recovery clarified his vocation rather than ending it.
Pope Leo XIV said:
“Obviously, I survived; I recovered, but it turned out to be a very significant moment for me, because it was like, ’Well, you’ve already dealt with the illness; you already see what the needs are here, the order, the Augustinians, the church are telling you, ‘We need you here; go for it.’ I never looked back.”
That history does not shrink the present diagnosis. It does show a man who has already measured duty against bodily limits and chosen to keep working.
For now, the verified record is straightforward: an early, localized lung cancer; a major lobe removed; a clean surgical report; a canceled calendar through Oct. 20; and an open question about a long South American tour weeks away. Institutions run on continuity. Bodies still set the terms.
