A 58-year-old man with a long history of smoking quit 10 years ago. On the advice of his family doctor, he underwent a low-dose CT scan, which revealed that a lung tumor had metastasized to the mediastinal lymph nodes, classifying it as localized small-cell lung cancer (SCLC). He immediately received chemotherapy, radiotherapy, and the latest immunotherapy. Now, more than a year later, no tumors can be found in his body, and he is in very good health.
Another case involved a 78-year-old man who had a chronic cough that he had ignored. Recently, his cough and breathing difficulties worsened, and he was taken to the emergency room. A CT scan revealed a large tumor in his lung that had metastasized to his liver.
