The stage of a cancer means how big it is and whether it has spread. Knowing the stage of the lung cancer helps your doctor decide which treatment you need. You might need one or more tests to find the stage.
An endoscopic ultrasound can check whether lung cancer has spread into the lymph nodes in the centre of the chest close to the wind pipe.
A mediastinoscopy is a test that examines the centre of your chest. It can help to find out the stage of a lung cancer.
A PET-CT scan can help to show exactly where the cancer is in your lung and whether it has spread elsewhere in the body.
Ultrasound scans use high frequency sound waves to create a picture of a part of the body. A liver ultrasound can show whether a cancer has spread.
A bone scan is a test that is done to see if lung cancer has spread to the bone. You have an injection of a small amount of radioactive substance.
An MRI scan uses magnetism and radio waves to create cross section pictures of the body. You might have an MRI scan to find out if your lung cancer has spread to other parts of your body.