How does tumour ablation work?

A specialist uses imaging to plan a route to the tumour, then guides one or more thin probes through the skin or, in selected situations, during an operation. Radiofrequency energy creates heat around the probe; microwave energy is another method. The treated zone is intended to include the visible tumour and a small surrounding margin chosen by the team. The damaged tissue stays in place and is gradually broken down by the body.

Ablation may be considered for selected tumours in the liver or kidney, including some liver metastases, when surgery is not suitable or when preserving working tissue matters. It is different from liver resection or kidney removal surgery, which physically remove tissue. Suitability depends on tumour position, size, number, nearby blood vessels and your overall health.

Before treatment, expect imaging, blood tests and a review of medicines that affect bleeding. Ask which anaesthetic or sedation is planned and arrange transport if advised. Afterward, rest as instructed and care for the puncture site. Mild soreness or tiredness can occur, but keep the follow-up scan because it shows how the treated area is changing. Report new symptoms rather than adjusting medicines yourself.

Seek urgent medical advice for fever, worsening abdominal pain, repeated vomiting, yellowing of the skin or eyes, increasing redness or drainage at the puncture site, or unusual bleeding. Emergency care is needed for fainting, severe breathing difficulty, sudden confusion or pain that rapidly becomes intense. Persistent abdominal pain should be assessed, whether or not ablation has taken place.

Ask why ablation is being recommended, how the probe will avoid nearby structures, whether another treatment is needed, what the follow-up scan will look for, and which symptoms require immediate help.