Pope Leo Diagnosed with Lung Cancer, Vatican Says Surgery Successful

The Vatican has announced that Pope Leo has been diagnosed with lung cancer, the most common form of the disease. The 71-year-old leader of the Catholic Church underwent surgery to remove a nodule from his lung, which was successful. The news has shocked many, given the Pope's previously active lifestyle and seemingly good health. The diagnosis raises questions about the Pope's health and his ability to continue leading the Church. Lung cancer is often associated with smoking, but it can also affect non-smokers. The Vatican has not released further details about the stage of the cancer or the Pope's prognosis. NBC News' Anne Thompson reports on this developing story. For more context and news coverage of the most important stories of our day, click here: https://www.nbcnews.com