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CION Cancer Clinics
Which cancers is HIPEC used for? | CION Cancer Clinics
HIPEC is used for cancers that have spread across the peritoneum, the thin lining of the abdomen, without spreading anywhere else. The main ones are a rare appendix tumour called pseudomyxoma peritonei, peritoneal mesothelioma, and selected bowel, ovarian and stomach cancers. The evidence is strong for some and still being gathered for others. This page says which is which, and what rules HIPEC out. CION Cancer Clinics’ surgical oncologists in Hyderabad can talk this through with you.
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Medically reviewed by Dr. Muralidhar MuddusettyConsultant Surgical Oncologist · MBBS (AIIMS), MS (Surgery, AIIMS), DNB (Surgical Oncology), MRCS (Edinburgh) · last reviewed September 2026, next review due September 2027
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On this page
- Which cancers is HIPEC used for?
- Which cancers, and how strong the case is for each?
- Where is HIPEC established, and where is it still being tested?
- How does the team decide whether your cancer is one of these?
- What families assume about who HIPEC is for, and what is true
- Words you will meet, in plain language
- Which cancers does HIPEC not help, and what this page cannot tell you?
- Common questions about which cancers HIPEC treats
The short answer
Which cancers is HIPEC used for?
HIPEC is used for cancers that have spread across the peritoneum, the thin lining of the abdomen, without spreading further. The main ones are a rare appendix tumour called pseudomyxoma peritonei, peritoneal mesothelioma, and selected bowel, ovarian and stomach cancers. It is not used for cancer that has reached the liver, lungs or bones.
Why it is about where the cancer is, not only what it is
Every cancer on this list starts somewhere else, and many people with these cancers will never need HIPEC. It becomes a question only when the cancer has seeded the lining of the abdomen, and only when those seeds can be removed by surgery. A bowel cancer that has spread to the liver is treated differently from one that has spread to the lining.
The evidence is not equal across the list
For some of these cancers, HIPEC is a well-established treatment. For others it is offered cautiously, or only in a trial, because the studies are small or gave mixed results. The sections below say which is which, because "HIPEC is used for this cancer" and "HIPEC clearly helps in this cancer" are two different sentences.
If your scan report says peritoneal deposits, carcinomatosis or omental thickening, the cancer has reached the lining. Ask what that means for your plan.The list
Which cancers, and how strong the case is for each?
Five situations where HIPEC is discussed. The case is strongest at the top and weakest at the bottom.
Pseudomyxoma peritonei
A rare tumour, usually from the appendix, that fills the abdomen with jelly-like mucus. It rarely spreads outside the abdomen, so clearing the lining and washing it is the main treatment. This is where HIPEC started and where the case for it is clearest.
Peritoneal mesothelioma
A cancer of the lining itself, unrelated to the more common lung form. It also tends to stay inside the abdomen, and surgery plus HIPEC is the standard approach at specialist centres for people fit enough.
Bowel cancer with limited spread to the lining
Considered when the deposits are few and can be fully removed. A large trial found that the surgical clearance carried most of the benefit and the heated wash added less than hoped, so practice varies.
Ovarian cancer
Ovarian cancer spreads to the lining early, and surgery to remove it is already standard. Adding HIPEC has shown benefit in one setting, after chemotherapy and before further chemotherapy, and is still being tested in others.
Stomach cancer
Spread to the lining is common and hard to treat. HIPEC is offered at some centres for very limited spread, and studied as a way to prevent it, but the evidence is thinner than for the cancers above.
Often offered only within a trial.Not sure whether this applies to you?
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Where is HIPEC established, and where is it still being tested?
Established at specialist centres
Offered cautiously or in trials
Pseudomyxoma peritonei from the appendix
Stomach cancer with spread to the lining
Peritoneal mesothelioma
Ovarian cancer at first diagnosis or at relapse
Other appendix cancers on the lining
Pancreas, bile duct and most other cancers
Ovarian cancer after chemotherapy, at interval surgery
Bowel cancer, where surgery alone may carry the benefit
How it is decided
How does the team decide whether your cancer is one of these?
Where the cancer began
The biopsy report names the cancer type and where it started. This alone rules HIPEC in or out for many people, before anything else is looked at.
Where it has spread
A CT scan, and often a PET-CT, checks whether the disease is only on the lining or has also reached the liver, lungs, bones or lymph nodes beyond the abdomen. Spread beyond the lining usually rules it out.
How much is on the lining
The surgeon estimates how many regions are involved, sometimes with a short keyhole look. Too much disease to clear completely means the wash would add little.
Whether you are fit for it
Heart, lung and kidney tests, nutrition and how active you are all count. A long operation and a slow recovery are only offered to someone who can come through them.
The tumour board
Surgeons, medical oncologists and radiologists look at the case together and decide. Ask to hear what they weighed, not only the answer.
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Commonly believed
What families assume about who HIPEC is for, and what is true
"It is for any cancer in the abdomen."
It is for cancer on the lining of the abdomen, from a short list of starting points, when that is the only place it has spread. Cancer inside the liver, the pancreas or the bowel wall alone is a different situation with different treatments.
"If it is on the list, HIPEC is the standard treatment."
Being on the list means it is discussed, not that it is done. Stage, fitness and how much disease is present all decide. For some cancers on the list, the evidence is still being gathered.
"Stage four means it is too late for HIPEC."
Spread to the lining is counted as stage four for most cancers, and HIPEC is one of the few treatments designed for exactly that stage. What rules it out is spread beyond the lining, or too much of it, not the stage number itself.
"A centre that offers HIPEC will offer it to everyone."
A good centre turns people down. Ask how many operations they do each year and how many people they assess and do not operate on. Both numbers tell you something.
On your report
Words you will meet, in plain language
- Peritoneal metastases
- Cancer that has spread to the lining of the abdomen from somewhere else. Also written as peritoneal deposits or carcinomatosis.
- Primary
- Where the cancer began. HIPEC decisions depend on the primary as much as on the spread.
- Omental caking
- The fatty apron over the bowel has become thick with cancer. A common sign of spread to the lining on a CT scan.
- Ascites
- Fluid collecting in the abdomen. Often caused by cancer on the lining, though it has other causes too.
- Extraperitoneal disease
- Cancer outside the lining of the abdomen, such as in the liver or lungs. This is what usually rules HIPEC out.
Being straight with you
Which cancers does HIPEC not help, and what this page cannot tell you?
HIPEC does not help cancers that have spread through the blood to the liver, lungs or bones, because the wash never reaches them. It is not used for pancreatic cancer, bile duct cancer or most other cancers of the abdomen outside trials, because the studies so far have not shown that it helps. And it does not help when the disease on the lining is too widespread to remove, whatever the cancer type.
Being on the list is the start of the question, not the answer
A person with bowel cancer and a few deposits on the lining, who is fit and has nothing elsewhere, may be offered it. A person with the same cancer and widespread deposits, or disease in the liver as well, will usually be offered chemotherapy through a drip instead. Same cancer, two different plans.
What this page cannot tell you
It cannot tell you whether you, or the person you are reading for, should have HIPEC. That needs your biopsy report, your scans, a fitness assessment and a tumour board. It cannot tell you how long anyone will live with or without it. If a centre gives you that number over the phone, be careful.
Bring every report to the first appointment. The cancer type on the biopsy report is the first thing the surgeon will look for.Questions we are asked
Common questions about which cancers HIPEC treats
Is HIPEC used for stomach cancer?
At some centres, for very limited spread to the lining, and in trials looking at whether it can prevent spread. The evidence is thinner than for appendix, mesothelioma or ovarian disease, so most teams offer it cautiously. Ask whether it would be inside a trial and what the alternative plan is.
Is HIPEC used for pancreatic cancer?
Not as a standard treatment. Pancreatic cancer spreads in ways the wash does not reach, and studies have not shown a benefit. A centre offering HIPEC for it should be doing so inside a registered trial. Ask about the standard options first.
My mother has ovarian cancer. Will she be offered HIPEC?
Possibly, in one specific setting: after chemotherapy has shrunk the disease, at the operation that follows. Surgery to remove disease from the lining is already standard in ovarian cancer. Whether HIPEC is added depends on the centre, her fitness and how she responded. Ask her team directly.
The scan says peritoneal deposits from bowel cancer. Is HIPEC the answer?
It is one of the questions to ask, not the answer. If the deposits are few and there is nothing in the liver or lungs, surgery to remove them may be offered, with or without the wash. If the spread is wider, chemotherapy through a drip is usually the plan.
Can HIPEC be used for cancer that has spread to the liver?
No. The wash treats only the surfaces it touches inside the abdomen. Cancer inside the liver, lungs or bones is out of its reach. Spread to those places usually rules HIPEC out, although a single small liver deposit is sometimes handled alongside it at specialist centres.
What is pseudomyxoma peritonei, and why is HIPEC so linked to it?
It is a rare tumour, usually from the appendix, that fills the abdomen with jelly-like mucus. It grows slowly and almost never spreads outside the abdomen, so clearing the lining and washing it treats the whole disease. This is where the operation was developed.
Does the type of bowel cancer matter?
Yes. Some bowel and appendix cancers produce mucus and behave more like pseudomyxoma, and the case for HIPEC is stronger in those. Others behave more aggressively, and the team will weigh the surgery more carefully. The pathology report describes this, so bring it.
How do I find out whether my cancer is one of these?
Ask your oncologist two questions: where did the cancer start, and has it spread anywhere other than the lining of the abdomen. If the answers are on the list above and the spread is limited, ask for a referral to a centre that assesses people for this operation.
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Sources
- NICE — Cytoreduction surgery with hyperthermic intraoperative peritoneal chemotherapy for peritoneal carcinomatosis (IPG688)
- Cancer Research UK — Pseudomyxoma peritonei
- National Cancer Institute — HIPEC, NCI Dictionary of Cancer Terms
- NHS — Ovarian cancer: treatment
- American Cancer Society — Treating colorectal cancer
This page is general information, not a prescription. Do not change or stop any treatment based on what you read here. If anything is worrying you, contact your own treating team — or call our helpline and we will help you reach the right specialist.
Keep reading
Related pages
HIPEC: What Heated Chemotherapy in the Abdomen Actually IsStart here if the word is new to youWho Is Eligible for HIPEC?What the team checks beyond the cancer typeHIPEC for Ovarian CancerThe one setting where it has shown benefitHIPEC for Colorectal Peritoneal SpreadWhy surgery may carry most of the benefitHIPEC for Pseudomyxoma PeritoneiThe cancer this operation was built for
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