Treating the tumor in place
Radiofrequency and microwave ablation create heat; cryoablation uses freezing. A probe is positioned under imaging guidance to treat the tumor and an intended margin. This differs from surgical removal, and it does not produce the same complete surgical specimen for pathology.
Source [1]
Size and location can outweigh the technology
Small tumors in selected liver, kidney, lung or other settings may be considered. Number, proximity to vessels, bowel or bile ducts, image visibility and access route affect feasibility. Blood flow can carry heat away, and nearby sensitive structures may limit a safe margin. Sometimes surgery or stereotactic radiation offers a better balance.
| Issue | What the team checks |
|---|---|
| Size and distribution | Can all intended lesions and margins be covered? |
| Visibility and access | Can the probe reach the target safely under imaging? |
| Nearby structures | Will bowel, ducts, vessels or nerves limit treatment? |
| Disease elsewhere | Does local treatment fit the overall cancer-control strategy? |
Global treatment frontiers
For selected small colorectal liver metastases, the 2025 international COLLISION randomized trial challenges the assumption that thermal ablation should be considered only when surgery is impossible. It brings the comparison closer to the decision patients face: cancer control, recovery burden and the ability to achieve an adequate treatment margin.
Primary liver cancer poses a different question. Chinese randomized research has evaluated adding arterial chemoembolization to ablation in selected hepatocellular carcinoma. These results concern different tumor biology and comparators; they support careful selection rather than a blanket preference for combining procedures.
Who was studied in COLLISION?
The trial enrolled adults with ten or fewer colorectal liver metastases, each no larger than 3 cm, without extrahepatic metastases, and suitable performance status. It stopped at a prespecified interim analysis. These details matter when considering ablation for larger tumors, different primary cancers or widespread disease.
Planning and confirming the result
Assessment includes coagulation, infection, anesthesia needs and organ function. After treatment, contrast imaging evaluates the ablation zone and possible residual viable tumor. Repeat treatment may be considered, but repeated procedures should not substitute for reassessing an ineffective strategy.
Technical completion and cancer control are different
The operator first checks whether the planned treatment zone covers the lesion. Follow-up contrast imaging then assesses residual viable tumor and later recurrence. An ablation cavity can remain visible even when treatment has worked; size alone should not be interpreted as failure. Agree when the first scan will be done and who reviews it.
Source [1]
Procedure-specific complications
Bleeding, infection and injury to adjacent organs are possible. Lung ablation can cause pneumothorax; liver treatment can affect bile ducts or liver reserve. Pain and a transient post-ablation syndrome may occur. The team should explain expected symptoms and when urgent assessment is needed.
If another session is proposed
Repeat treatment can address a residual focus or a new lesion, but these are different from repeated failure at the same site. Ask whether another ablation can achieve a safe margin or whether surgery, radiotherapy or systemic treatment now offers a better strategy. Preserve the procedure report and imaging for that decision.
Estimated total treatment cost
The estimated total costs below cover one percutaneous ablation procedure and related medical care. The technique, number and location of tumors, and probes required affect the final cost.
| Treatment | Estimated total treatment cost |
|---|---|
| Radiofrequency or microwave ablation | US$10,000–22,000 |
| Cryoablation | US$14,000–29,000 |
What’s included
The total includes specialist and anesthesia assessment, necessary tests and imaging, image-guided ablation, anesthesia or sedation, probes and routine consumables, necessary hospitalization and nursing, routine medicines, and early follow-up imaging. Travel and accommodation are not included.
Your treatment plan
Additional lesions, repeat procedures and extra care may increase the total. Separately arranged surgery, radiotherapy or systemic anticancer treatment are assessed separately. Contact us for an estimate based on your treatment plan.
Evidence & sources
Prepared by Chirona’s content team from the sources below. This guide supports a discussion with your treating team; it does not determine an individual treatment plan.