The Gamma Knife helps destroy difficult-to-access tumours

The scar from a cancer patient's brain tumour removal operation is seen in this filepic. Such scars may soon be a thing of the past with the availability of Gamma Knife surgery.

In the last decade, we have seen minimally invasive endoscopic surgery making headway in the treatment of head and neck tumours.

However, like the scalpel blade, surgical telescopes have their limitations.

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