Pope Leo was admitted to Gemelli Hospital in Rome on October 13, 2026, for surgery to remove a nodule on his lung. The Vatican said the tumour removed from his right lung was cancerous, that the diagnosis is lung adenocarcinoma, and that surgeons took the entire lower lobe in a 90-minute operation. He returned to the Vatican six days after surgery. Doctors are still assessing whether more treatment is needed, and the Pope says he will keep his planned early-November trip to Peru, Uruguay and Argentina, which remains the open question as the discussion turns to his recovery.