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Macmillan and Cancerbackup merged in 2008. Together we provide free, high quality information for people affected by cancer through our publications, website and phone service. Find out more|.
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If your tests show that you have secondary cancer of the liver, and it was not previously known that you had a primary cancer elsewhere in your body, your doctor may need to do some further tests. These will be to try to find out where the primary cancer is.
All medical tests take time and may be uncomfortable, so your doctor will only arrange tests that are most likely to affect your future treatment|. If it’s necessary to do such tests, your doctor will discuss them with you first.
Some cancers produce abnormal levels of proteins which can be detected in the blood by simple blood tests. These proteins are called tumour markers. They can help the doctors to find out where the primary cancer is.
You may have a PET-CT scan if your doctors are considering surgery as a treatment. This combines a CT scan| - which takes a series of x-rays to build up a three dimensional picture - with a PET scan, which uses low dose radiation to measure the activity of cells in different parts of the body. It gives more detailed information about the part of the body being scanned.
PET-CT scans are a new type of scan and not yet widely available, so you may have to travel to a specialist centre to have one.
You’ll be asked not to eat for six hours before the scan, although you may be able to drink. A mildly radioactive substance will be injected into a vein, usually in your arm. The radiation dose used is very small. You then need to rest for at least an hour so that the radioactive substance can travel through your body.
The scan itself usually takes 30-90 minutes but could be longer. You should be able to go home once the scan is over.
For answers, support or just a chat, call the Macmillan Support Line free (Monday to Friday, 9am-8pm)
If you have any questions about cancer, need support or just want someone to talk to, ask Macmillan.