Pope Leo XIV says he will undergo surgery in the coming days to remove a nodule on his lung

A lung nodule is a small abnormal area measuring less than 3 centimeters (1 inch) that sometimes appears on a CT scan of the chest or abdomen, according to the American Cancer Society. Often, the scans are done to investigate trauma or a lung infection, unrelated to a lung cancer screening.

“Lung nodules are fairly common and are often benign, but benign and cancerous nodules can have a similar appearance on imaging,” said Dr. Stephen Liu, a lung cancer expert at Georgetown’s Lombardi Comprehensive Cancer Center.

“When there is sufficient concern, and when it is safe to do so based on the location of the nodule and the overall health of the patient, surgical removal can provide a definitive diagnosis,” he said in an email.

Leo has no previously known health problems and is physically active, with weekly tennis matches and swimming at the papal summer retreat in Castel Gandolfo.

The pope has a major trip planned Nov. 6-17 to Uruguay, Argentina and Peru. It’s unclear how or whether the planned surgery and recovery might affect the itinerary, but Leo said earlier in his remarks Sunday that he still planned to go.

In his remarks, delivered in Italian, Leo said that during a recent medical check, “doctors found a small, localized nodule in my lung. It was detected at a very early stage and is circumscribed. The doctors believe it’s best to take action, so, following their advice, I have decided to have surgery to remove it.”

He thanked the faithful “for your spiritual support, and I entrust myself to your prayers.”

Surgery to be at the pope’s hospital

Leo’s predecessor, Pope Francis, died April 21, 2025, of a stroke following a long hospitalization brought on by a respiratory crisis that developed into double pneumonia. Francis suffered from chronic lung disease and had part of one lung removed as a young man.

Leo is expected to undergo surgery at Rome’s Gemelli hospital, where Francis and popes before him were treated and where there is a special apartment for pontiffs. On Sunday, there was no obvious sign that the pope had already been admitted.

Dr. Massimo Di Maio, president of the Italian Association of Medical Oncology, said it will be important to determine if the nodule is benign or malignant, and if it is malignant, whether it has spread. When the disease is detected at an early stage “the aim … is curative,” he added.

Depending on what is found, possible treatments can include chemotherapy and radiation therapy, Di Maio told Italy’s private Sky TG24.

“When we talk about something being localized, that can also refer to the need to establish whether the disease is confined to that one site or whether scans show signs of disease elsewhere,” he said, adding that he has not treated the pope and was speaking about the disease in general.

“Being physically fit and healthy is certainly an important starting point for coping as well as possible with treatment, including surgery,” he added.

Italian Premier Giorgia Meloni, among the few outsiders to visit Francis during his long final hospitalization, expressed her support, and that of the Italian government, for Leo “as he faces this challenge in the coming days.” In a statement, she added that “the serenity and calm with which he spoke about it” were reassuring.

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Barry reported from Milan.

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Associated Press religion coverage receives support through the AP’s collaboration with The Conversation US, with funding from Lilly Endowment Inc. The AP is solely responsible for this content.

Nicole Winfield And Colleen Barry, The Associated Press

by The Canadian Press

Pope Leo XIV says he will undergo surgery in the coming days to remove a nodule on his lung

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