
Louis Prevost, 74, is participating in a clinical trial. The Vatican announced the successful operation of Pope Leo XIV.
AI-generated summary
Pope Leo XIV is the first pope in history born in the United States. His brother Louis has been battling multiple myeloma since 2017.
Deborah Prevost did not say what stage her husband's cancer was at. She noted that now 74-year-old Louis Prevost is taking part in a clinical trial at a local hospital where he is being treated. Multiple myeloma is a malignant tumor of plasma cells.
Deborah Prevost said Louis was first diagnosed with the disease in 2017. After undergoing treatment in 2019, which included stem cell therapy and a clinical trial, the development of the disease was stopped. Three months ago it went into remission.
In an interview with CBS News, the pope's sister-in-law said that her husband and his brother spoke last week before Louis went for clinical trials. According to Deborah Prevost, Leo XIV called to say he was going to have surgery.
Vatican statement after Leo XIV's operation
Yesterday, during an operation at the Gemelli Polyclinic in Rome, Pope Leo XIV had the lower lobe of his right lung removed. Histopathological examination confirmed the diagnosis of lung adenocarcinoma, the Vatican announced. The operation was completed successfully. There were no complications. In a morning statement, the Holy See said that the Pope spent a peaceful night. He is expected to stay in the hospital for about a week.
The first pope born in the USA
Leo XIV is the first pope born in the USA. He grew up with his two older siblings, Louis and John, in the Chicago area. In an interview with CBS News in May 2025, after then-Cardinal Robert Prevost was elected pope, Louis Prevost said the family knew "from an early age that Rob had something special about him."
AI outlook — possibilities, not facts
The Pope is expected to stay in the hospital for about a week
Very likely · Within days

On Tuesday, Pope Leo XIV underwent planned surgery to remove a nodule detected on his lung at the Gemelli Polyclinic in Rome under the supervision of Prof. Stefano Margaritory. The procedure went as planned without complications, and the next step is a detailed examination of the removed lesion, which will decide on possible further treatment.

Pope Leo XIV was taken to hospital, where he will undergo surgery performed by the team of Prof. Stefano Margoritory. The Vatican suspended audiences until October 20, and extraordinary security measures were introduced around the polyclinic.

An Italian newspaper reports that an extraordinary security plan has been implemented at the Gemelli Polyclinic in Rome against the planned operation of Pope Leo XIV, including the isolation of the tenth floor, the protection of medical data with special codes and the cooperation of the Vatican gendarmerie, Italian police and hospital security, using drones and deploying officers around the building.

Archbishop Timothy Broglio is criticizing the Pentagon's plan to broadcast live the execution by firing squad of Nidal Hasan, convicted of killing 13 people in 2009, appealing to Catholics to be released from the firing squad and emphasizing the Church's opposition to the death penalty.

The Polish Episcopal Conference is developing uniform standards for premarital courses to prevent fiancées from being superficially prepared for the sacrament of marriage. Currently, in Poland there are no uniform rules regarding the length and form of these courses, which vary depending on the diocese. The new guidelines are to be similar to the model of the Vatican Dicastery for Laity, Family and Life, which assumes a one-year preparation stage before the engagement, several months of direct preparation for the wedding and two-three years of accompanying the spouses after the wedding.

Pope Leo XIV will go to the Gemelli Polyclinic in Rome on Tuesday for a planned procedure to remove a small nodule from his lung. The change was detected at an early stage during routine check-ups.