The staging process begins once a lung cancer diagnosis is confirmed. Beyond an initial computed tomography (CT or CAT) scan, your doctor will likely order a brain magnetic resonance imaging (MRI) scan to see if there is any evidence of disease in the brain–a common area of metastasis–and a positron emission tomography (PET) scan to see whether the lung cancer has spread to your bones, adrenal glands and/or liver. Taken together, all of this information helps to stage the cancer and guide treatment decisions.
After you get diagnosed with lung cancer, you will have a lot of information thrown at you. This section aims to put things like the staging process and how lung cancer forms in simple terms.