On the morning of October 11, 2026, Pope Leo addressed the faithful from the balcony of St. Peter’s Square, delivering the traditional Sunday apostolic blessing. During this address he disclosed that doctors had discovered a lesion on his chest, as reported in the Vatican bulletin.
Two days later, on October 13, the Pope entered the operating theater for a procedure that lasted exactly ninety minutes. Surgeons removed the lower lobe of his right lung, aiming to excise the entire cancerous mass. Pathology confirmed the tumor was a pulmonary adenocarcinoma—a form of lung cancer that accounts for roughly 40 % of all cases. The histological report showed the disease was localized, meaning it had not spread beyond the lung tissue.
Pope Leo XIV’s lung cancer surgery last week was a success and no further treatment is required, the Vatican press office said in a bulletin. https://t.co/fIlRDjPdg1 https://t.co/eMrwffYF7Z
After four days of postoperative monitoring, Pope Leo was released from the hospital on the afternoon of October 21. The same day he attended Mass at St. Peter’s Square. His appearance after discharge reflected the recovery described by the Vatican press office as faster than expected.
After four days of postoperative monitoring, Pope Leo was released from the hospital on the afternoon of October 21.
Their conclusion, reiterated in a Vatican bulletin on Wednesday, was unequivocal: the tumor was localized, and a subsequent oncological evaluation confirmed that no further treatment—whether chemotherapy, radiation, or additional surgery—was necessary.
Relief for Catholics as Pope Leo XIV Is declared cancer-free https://t.co/3rOBhAQdv2
The Vatican press office highlighted the speed of the Pope’s convalescence, noting that his health would allow him to continue his duties, including the upcoming South American pilgrimage.
Plans announced for the coming month include a pilgrimage to Uruguay, Argentina, and Peru. The Vatican’s bulletin confirmed that the Pope’s health status would not interfere with these travel plans.
The Pope’s openness about his diagnosis, as documented in the Vatican bulletin, provides a clear medical narrative for the faithful. The episode demonstrates the Holy See’s access to specialized medical care and sets a factual precedent for handling future health matters within the Church hierarchy.