“When a tumour appears in the liver, that doesn’t mean it’s a liver cancer,” Professor Caroline Dive told me during a recent Zoom call. “It could be a liver cancer, or it could have come from somewhere else, like the lung. The treatment for lung cancer and liver cancer is not the same, but if we can say what a tumour is, and that it has this pattern of mutations, then we can start to think about the right treatment.” The rest of this article is behind a paywall. Please sign in or subscribe to access the full content.

We’re talking about Cancer Detectives , a new series from Channel 4 that follows pioneering research that could transform the future of cancer detection, treatment, and prevention. Episode three, "Clues in the Blood", explores a biomarker test that could detect cancer

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