VATICAN CONFIRMS POPE LEO’S LUNG CANCER AFTER SUCCESSFUL SURGERY, LEAVING FURTHER TREATMENT AND PROGNOSIS UNDER MEDICAL REVIEW

October 14, 2026

Pope Leo XIV has been diagnosed with lung adenocarcinoma after undergoing surgery to remove the lower lobe of his right lung at Rome’s Gemelli Hospital, the Vatican confirmed on Tuesday. The 71-year-old pontiff underwent a procedure lasting approximately 90 minutes, which doctors described as successful and free of complications. The diagnosis marks the first major health setback of his papacy, which began in May 2025.

The operation was undertaken to remove a small growth discovered during a recent medical check-up. Pope Leo had disclosed the presence of a lung nodule on Sunday, describing it as localised and detected at an early stage. The subsequent examination of tissue collected during surgery confirmed the suspected diagnosis of lung adenocarcinoma, a common form of lung cancer.

According to the medical bulletin issued by the Vatican, the surgical team removed the lower lobe of the pope’s right lung using a video-assisted technique. The procedure was intended to remove the cancerous tissue, with the doctors reporting that the operation proceeded as expected.

Following the surgery, Pope Leo regained consciousness normally and was transferred to his hospital room, where he was resting. The Vatican has indicated that his recovery is expected to take approximately one week, with all public engagements cancelled until October 20 to allow him time to recuperate.

Although the operation was successful, important questions about the extent of the disease and the pontiff’s longer-term treatment remain unanswered. The Vatican has not disclosed the size of the tumour or whether the cancer has spread to nearby lymph nodes. These details are important in determining the stage of the disease, the likelihood of complete recovery and whether additional treatment will be required.

Medical specialists have emphasised that the outcome of lung cancer treatment depends on several factors, including the size and location of the tumour, whether cancerous cells have spread and whether the affected tissue can be completely removed. When a lung cancer is detected at an early stage and has not spread to lymph nodes or other organs, surgery may be sufficient to achieve a curative outcome. However, a definitive assessment of the pope’s prognosis will require further pathological findings and clinical evaluation.

The Vatican has not yet announced whether Pope Leo will require chemotherapy, radiotherapy or another form of treatment following the operation. The immediate focus remains on his recovery and the additional medical assessments needed to determine the appropriate next steps.

Pope Leo travelled from the Vatican to Gemelli Hospital in Rome on Tuesday shortly before 1 pm local time. His convoy covered the approximately nine-kilometre journey to the hospital, where he arrived amid well-wishers who offered him encouragement and prayers. He greeted some people waiting outside before entering the facility for treatment.

The pope had maintained a demanding schedule in the days before the operation, continuing his official engagements despite the discovery of the lung nodule. His public appearances have now been suspended temporarily, with the Vatican prioritising rest and recovery following the surgical procedure.

The development has also raised questions about his upcoming international travel. Pope Leo is scheduled to undertake an 11-day visit to Uruguay, Argentina and Peru from November 6 to 17. The Vatican has not confirmed whether the journey will proceed as planned, and the final decision is expected to depend on his recovery and the medical advice he receives.

Born Robert Prevost in Chicago in 1955, Pope Leo became head of the Catholic Church in May 2025. Before his election, he spent decades as a missionary and bishop in Peru. Although he has generally appeared active and energetic during his papacy, the diagnosis represents a significant new medical challenge.

The pope’s hospitalisation has also drawn attention to the way the Vatican operates when its leader is temporarily unable to carry out public duties. Unlike certain political systems, the papacy does not have a deputy who automatically assumes the pope’s authority during illness. Vatican departments and administrative operations continue their work, while decisions requiring the pontiff’s personal approval may await his recovery.

For now, the Vatican has confirmed that the surgery was successful and that Pope Leo is resting in hospital. The diagnosis of lung adenocarcinoma adds a serious dimension to what was initially described as the removal of a small, early-detected lung growth. Nevertheless, the extent of the disease, the need for further treatment and the prospects for a complete recovery have yet to be established publicly.

The coming days will therefore be important for determining the pontiff’s medical outlook. His immediate recovery, the results of further examination and the advice of his medical team will guide decisions about subsequent treatment and the resumption of his public schedule. Until those assessments are complete, the Vatican’s stated priority remains his recovery following the operation