These tests find out the position of the cancer, how big it is and whether it has spread.
You will also have a dental examination to pick up and correct any issues with your teeth, such as fillings that need doing, or loose teeth. These can cause a problem when you start cancer treatment. You will see a restorative dentistry consultant who may need to remove any problem teeth to prevent you developing any complications during treatment.
Find out what a CT scan is, how you have it and what happens afterwards.
Find out about having a PET scan including what it is, how you have it and what happens afterwards.
To find out if there are cancer cells in your lymph nodes you might have a fine needle aspiration or a needle biopsy.
Find out what an endoscopy is, how you have it and what happens afterwards.