Cancer Ablation


What is Cancer Ablation?

This is a minimally invasive surgical method to treat solid cancers. Special probes are used to “burn” or “freeze” cancers. Computed Tomography (CT), Ultrasound (US) or Magnetic Resonance Imaging (MRI) is used to guide and position the needle probe into the tumour. This requires only a tiny hole, usually less than 3 mm via which the probe is introduced. When the probe is within the cancer it is attached to a generator which “burns” or “freezes” the cancer.  “Burning” refers to increasing the temperature of the tumour to such a level that cancer cells die. This is usually achieved by radio frequency probes, referring to the type of energy used to increase the temperature. “Freezing” refers to cryoablation which decreases the temperature to -40 C (-40 F) which also kills the cancer cells.  Within the classification of tumour ablation, there are several modalities used worldwide: radiofrequency (RFA), microwave (MWA), laser, high-intensity focused ultrasound (HIFU), cryoablation, and irreversible electroporation (IRE). Each technique, although similar in purpose, has specific and optimal indications.

Tumor ablation is commonly used in the treatment of tumours of the liver, kidney, bone, and lung. It is an important option for people who need adjuvant/neoadjuvant treatment and/or are not surgical candidates. 

The ones I see most in use for Neuroendocrine Cancer include the list below but I normally only see them used for lung and liver tumours. 

  • Radiofrequency ablation (RFA) uses high-energy radio waves. A thin, needle-like probe is put through the skin and into the tumour. Placement of the probe is guided by an ultrasound or CT scan. The tip of the probe releases a high-frequency electric current which heats the tumour and destroys the cancer cells.
  • Microwave Ablation (MWA) is similar to RFA, except it uses microwaves to heat and destroy the cancer cells.
  • Cryotherapy (also known as cryosurgery or cryoablation) destroys a tumour by freezing it with a thin metal probe. The probe is guided through the skin and into the tumour using an ultrasound. Then very cold gasses are passed through the probe to freeze the tumour, killing the cancer cells. This method may be used to treat larger tumours than the other ablation techniques, but it sometimes requires general anesthesia (where you are asleep).

Larger tumour ablation

As above, there are limitations are on size of the tumour to be ablated (normally up to 2cm). However, Cleveland Clinic recently announced they are the first hospital in the world to use a recently FDA-approved ablation technology that can destroy large liver tumours. The minimally invasive procedure uses a single needle connected to a powerful 150-watt microwave generator that can burn a malignant liver tumour as large as 2.4 inches, which is about the size of an egg.  Click here to read more.

Credit Cleveland Clinic. Click the picture to read the article

Ablation in the Pancreas remains controversial despite studies

I also wrote about the apparently controversial ablation of small pancreatic NETs which guidance is to currently watch and wait.   You can read that here

Click the picture to read more

Is Science bringing treatments together?

The boundaries between surgery, ablation and radiotherapy are getting closer as science advances.  Take Stereotactic Radiosurgery (SRS) for example, it uses many precisely focused radiation beams to treat tumors and other problems in the brain, neck, lungs, liver, spine and other parts of the body. It is not surgery in the traditional sense because there’s no incision.  When doctors use SRS to treat tumors in areas of the body other than the brain, it’s sometimes called stereotactic body radiotherapy (SBRT) or stereotactic ablative radiotherapy (SABR).  I’ve covered this whole area in my treatment summary for patients blog post but I wrote separately about a Proof of Concept trial for NETclick here to read that.

Click on the picture to read more


I also recently wrote about a clinical trial of Histotripsy which is the first noninvasive, non-ionizing, and non-thermal ablation technology.  You can read that by clicking here

Click the picture to read


I am not a doctor or any form of medical professional, practitioner or counsellor. None of the information on my website, or linked to my website(s), or conveyed by me on any social media or presentation, should be interpreted as medical advice given or advised by me. 

Neither should any post or comment made by a follower or member of my private group be assumed to be medical advice, even if that person is a healthcare professional.   

Please also note that mention of a clinical service, trial/study or therapy does not constitute an endorsement of that service, trial/study or therapy by Ronny Allan, the information is provided for education and awareness purposes and/or related to Ronny Allan’s own patient experience. This element of the disclaimer includes any complementary medicine, non-prescription over the counter drugs and supplements such as vitamins and minerals.

General Clinical Trials Disclaimer

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided in the clinical trials document. It’s very important to check the trial inclusion and exclusion criteria before making any contact.  If you need questions, the articles here is very useful Questions to Ask About Clinical Trials | Cancer.Net

The inclusion of any trial within this blog should not be taken as a recommendation by Ronny Allan. 



Whenever I post about a trial or study, some people get excited without understanding that these new treatments and capabilities can very often take years to come to fruition and it’s also possible that clinical trials can be halted, or that national approval agencies will not approve the final product.  Plus, not everyone will be eligible, so always check the exclusion and inclusion criteria in the relevant clinical trials document  Please bear that in mind when reading studies/clinical trials posted on RonnyAllan.NET

Subscribe to Blog via Email

Enter your email address to subscribe to this blog and receive notifications of new posts by email.

Join 19,911 other subscribers.

Thanks for reading.


I’m also active on Facebook. Like this page.
I’m also active on this Facebook page. Follow this page.
Also like this awareness page on Facebook. 

Sign up for my newsletters – Click Here


My Diagnosis and Treatment History

Follow me on twitter

Check out my online presentations

Check out my WEGO Health Awards

Like my new awareness page – click here or on the photo.  (Like rather than follow please!)

Check out my Glossary of Terms – click here

patients included

Please Share this post for Neuroendocrine Cancer awareness and to help another patient


A spotlight on Chromogranin A

What is Chromogranin A? Chromogranin A (CgA) is an acidic protein released along with catecholamines from chromaffin cells and nerve terminals. This statement alone might

Read More »

Neuroendocrine Cancer: Catch them early, not late!

Diagnosing Neuroendocrine Neoplasms (NENs). It’s no secret that Neuroendocrine Neoplasms (NENs) can be difficult to diagnose, particularly well differentiated slow growing types (NETs) which can

Read More »

A spotlight on Rectal Neuroendocrine Neoplasms

What are Rectal NENs Rectal Neuroendocrine Neoplasms (NENs) (rNENs) account for approximately 1-2% of all primary cancers in the rectum.  The other main cancer types

Read More »
Clinical Trial

Clinical Trial: Novel Somatostatin Receptor Subtype 2 Antagonist Labelled With Terbium-161 (161Tb-DOTA-LM3) (Beta plus)

A new clinical trial post. What is Terbium-161 (161Tb-DOTA-LM3) (Beta plus). Terbium-161 is a radioactive substance.  DOTA-LM3 is a novel somatostatin antagonist targeted using somatostatin

Read More »

Repeat after me: Maria Menounos has Neuroendocrine Cancer

Like many people from outside USA, I don’t really know anything about Maria Menounos.  For those in the same boat, let me confirm she is

Read More »

Summary of April 2023 on RonnyAllan.NET

Summary of RonnyAllan.NET website activity in April 2023 The top 10 most read posts in April are included below as the main product of this summary

Read More »

A spotlight on 5-HIAA

Background. It’s important to note that not every type of Neuroendocrine Neoplasm will get the same tests due to the heterogenous nature of this cancer type.

Read More »

The NET Detectives

The NET Detectives is an awareness post. Detecting NETs In general, it’s probably true to say that Neuroendocrine Tumours (NETs) are difficult to diagnose. Some

Read More »

Low FODMAPs – The NET Effect

Background Many people with NET have had issues prior to diagnosis and then continue to have similar issues after. For some it will be either

Read More »

I love comments - feel free!

%d bloggers like this: