Papa Francesco's illness: lung cancer overview

Pope Leo XIV was diagnosed with adenocarcinoma of the lung after surgical removal of a part of his right lung. This is a common type of lung cancer that develops due to abnormal growth of cells in lung tissues, leading to tumors that can spread to other parts of the body. Lung cancer is the third most common cancer worldwide and the leading cause of cancer-related deaths. Early symptoms often do not appear, but may include a persistent cough, shortness of breath, and chest pain, especially in the early stages. Lung cancer is primarily caused by smoking, but other factors such as exposure to radon gas and air pollution also play a role. Diagnosis typically involves imaging tests like X-rays and CT scans, as well as biopsies to determine the type and stage of the cancer. Staging considers the size of the tumor and its spread, ranging from Stage I, characterized by a small, localized tumor, to Stage IV, where the cancer has spread to other organs. Treatment usually involves surgery to remove the tumor, or a combination of chemotherapy, radiation therapy, targeted drugs, and immunotherapy, aimed at eliminating the cancer or slowing its growth. The choice of treatment depends on the cancer's type and stage, as well as the patient's overall health.