Ablation, a minimally invasive tumour-destroying technique using focused radiation, is proving effective. So why is it not more widely known?

Seven years ago, when Heather Hall was informed by her oncologist that her kidney cancer had spread to the liver, she initially assumed she had just months to live. “I’d been on chemotherapy for a while, but they’d done a CT scan and found three new tumours,” she says. “But they then said that, because the tumours were relatively small, they could try to lengthen my prognosis by removing them with ablation.”

Hall underwent a course of microwave ablation, a minimally invasive treatment where surgeons use hollow needles to deliver intense, focused doses of radiation to heat each tumour until it is destroyed. While ablation technologies – they also commonly include radiofrequency ablation and cryoablation, which destroys tumours using intense cold – are not tackling the underlying cause of the disease, their impact can be enormous as they relieve pain and often prolong survival for many years, all at a low cost.

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