Brain tumour cells found circulating in blood

German scientists have discovered rogue brain tumour cells in patient blood samples, challenging the idea that this type of cancer doesn’t generally spread beyond the brain.

Researchers from the University Medical Center Hamburg-Eppendorf, in Hamburg, found that patients with an aggressive form of brain tumour known as glioblastoma multiforme sometimes have tumour cells circulating in their blood.

The discovery could help doctors improve the way they monitor how the disease progresses, and could have implications for treatment.

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