Pope Leo has lung cancer, the Vatican announces after surgery

The surgery, performed at Gemelli Hospital in Rome, involved removing the lower lobe of the Pope's right lung, according to a statement by Leo's doctors released by the church. Lung tissue examined after the surgery confirmed a previous test that revealed a diagnosis of lung adenocarcinoma, the Vatican said.

Adenocarcinoma of the lung is the most common form of lung cancer in the United States, representing about 40% of all lung cancers, according to the Lung Cancer Foundation of America.

MNA