More than 50 percent of newly diagnosed cancer patients already have these secondary tumors, or metastases, which are often undetectable and fatal.

It's designed to prevent secondary tumours from developing.

If they are not successful in destroying the cancer cells the nodes may become sites of secondary tumors.

MRI has had a major impact on the diagnosis of primary and secondary tumours within the central nervous system.

This tends to be used in palliative care to reduce the pain due to secondary tumors in the bones.

This treatment will also normally seek out and destroy any secondary tumor which arose from a thyroid cancer.

Once a carcinoma becomes invasive, it is able to spread to other organs and cause a metastasis, or "secondary tumor", to form.

Some may become trapped at new sites, extravasate, and form secondary tumours.

Even with the operation, there was a strong chance of secondary tumours appearing.

"The site has to be suitable for the growth of the secondary tumor."