In a poignant turn of events, both Louis Prevost and his brother, Pope Leo XIV, are currently battling cancer. Deborah Prevost, Louis’ wife, disclosed that her husband, who has been living with multiple myeloma since 2017, recently ‘fell out of remission’. This distressing news comes shortly after the Vatican confirmed that Pope Leo XIV has been diagnosed with lung adenocarcinoma.
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Deborah Prevost shared the details of her husband’s cancer journey, noting that he underwent significant treatments, including a clinical trial and stem cell therapy, in 2019. However, in a troubling development, Louis’ cancer has worsened, leaving his family concerned for his wellbeing. The couple reportedly spoke with the pontiff last week, where Pope Leo XIV reached out to inform them about his health situation. “We keep praying, keeping spirits up for both of them,” Deborah said, as she expressed her hopes for recovery for her husband and brother-in-law.


Multiple myeloma is a type of blood cancer that originates in plasma cells, which play a crucial role in the immune system by producing antibodies that fight infections. When these cells become cancerous, they can proliferate in the bone marrow and potentially spread throughout the body, posing serious health risks.
In related news, on October 13, the Vatican announced that Pope Leo XIV had been diagnosed with lung adenocarcinoma. This particular form of lung cancer is noted for its prevalence and is characterised by the uncontrolled multiplication of abnormal lung cells, ultimately forming a tumour. As the situation progressed, these tumours can metastasise to other parts of the body, complicating the patient’s health status.
Following his diagnosis, Pope Leo XIV underwent a successful surgical procedure at Gemelli Hospital in Rome, where doctors removed a portion of his lower right lung. The surgery was described as without complications, and subsequent updates from his medical team indicated that the recovery process is advancing well. Dr. Luigi Carbone and Professor Stefano Margaritora confirmed that the pope is responding positively, having begun respiratory physiotherapy and resumed normal eating habits.
Doctors previously indicated an excellent prognosis for Pope Leo XIV, largely due to the early detection and treatment of the lung cancer. The pontiff shared the news of his health during his weekly address in St. Peter’s Square, where he revealed that the surgery was necessary following the identification of a “very early-stage” nodule. While the further details of his treatment plan remain to be clarified, the Vatican has announced that the pope will be staying in the hospital for approximately a week for recovery.
In the wake of these health challenges, both families are at the forefront of what is a profoundly difficult time. The emotional toll of two brothers facing cancer simultaneously has not only affected their immediate family but also stirred concern among their wider community.
As the news continues to unfold, both Louis Prevost and Pope Leo XIV remain in the thoughts and prayers of many. The bond shared between the two brothers, now layered with the shared fight against cancer, has become a focal point for hope and resilience amidst adversity. The public response has underscored the importance of family support during such trying times, as both the Prevost family and the Vatican navigate their respective battles with courage and optimism.
