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CION Cancer Clinics
Portal vein embolisation before bile duct cancer surgery | CION Cancer Clinics
Portal vein embolisation makes one side of the liver grow before surgery removes the other side. It is offered when the liver left after an operation for perihilar bile duct cancer would be too small to keep you well. It does not treat the cancer. It makes the operation that does treat it safer. This page explains why it is suggested, what happens and who it does not suit. At CION Cancer Clinics in Hyderabad, our oncologists explain liver cancer in plain words and plan care around you and your family.
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Medically reviewed by Dr. Muralidhar MuddusettyConsultant Surgical Oncologist · MBBS (AIIMS), MS (Surgery, AIIMS), DNB (Surgical Oncology), MRCS (Edinburgh) · last reviewed October 2026, next review due October 2027
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On this page
- Why would I need portal vein embolisation before bile duct surgery?
- How does the team decide whether I need it?
- What happens, step by step, from drainage to the operation?
- What do the words in my scan and surgery letters mean?
- Is the waiting time after embolisation lost time?
- Who does portal vein embolisation not suit?
- What can this page not tell you?
- Common questions about portal vein embolisation
The short answer
Why would I need portal vein embolisation before bile duct surgery?
Portal vein embolisation is a procedure that makes one side of the liver grow before an operation removes the other side. It is offered when the part of the liver that will be left behind looks too small to keep you well after surgery. This page is about bile duct cancer at the point where the ducts leave the liver, often called perihilar cholangiocarcinoma or a Klatskin tumour.
Why this cancer so often needs it
A tumour where the bile ducts join usually cannot be removed on its own. The surgeon often has to take the bile ducts together with a large part of the liver, frequently the whole right side and sometimes more. What stays behind is the smaller left side. If that leftover liver is too small, it may not cope with the work of the whole liver in the days after the operation.
What the procedure does
The portal vein carries blood from the gut to the liver. Blocking the branch that feeds the side due to be removed sends all of that blood to the side that will stay. Over the following weeks, the side that stays grows. The operation is then planned on a bigger, stronger leftover liver.
Portal vein embolisation does not treat the cancer. It prepares the liver for the operation that does.Before anyone decides
How does the team decide whether I need it?
The decision is made at the tumour board, where surgeons, oncologists and radiologists look at the same scans together.
How much liver will be left
A special scan measures the volume of the part that would stay. This is called the future liver remnant. A remnant that looks small on that scan is the usual reason to suggest embolisation first.
How healthy that liver is
A liver that has been blocked with bile for a long time, or one with fatty change or scarring, needs a bigger remnant than a healthy one. Two people with the same scan can get different advice for this reason.
Whether the jaundice is controlled
A liver full of trapped bile grows poorly. Most teams want the side that will stay drained first, with a stent or a drain, so that the yellowing settles before embolisation.
- Bilirubin falling on blood tests
- No infection in the bile ducts
- Eating and gaining some strength
Whether the operation is possible at all
Embolisation only makes sense if the tumour itself can be removed. If it has reached both sides of the liver or spread beyond it, growing the liver will not change that answer.
Not sure whether this applies to you?
Ask an oncologistFrom drainage to surgery
What happens, step by step, from drainage to the operation?
The bile is drained first
A stent placed through an endoscope, or a thin drain placed through the skin, lets bile flow out of the side of the liver that will stay. Why a stent usually comes first is explained on its own page.
The embolisation itself
An interventional radiologist passes a fine needle through the skin into a branch of the portal vein, guided by ultrasound and X-ray. Small plugs or particles block the branches that feed the side to be removed. It is usually done under sedation and local anaesthetic.
A short stay and a few quiet weeks
Most people go home within a day or two. You may feel sore, tired or slightly feverish for a few days. Then you wait while the liver grows, keeping the drain or stent working and eating well.
A repeat scan
A scan after several weeks measures how much the remaining side has grown. It also checks that the tumour has not spread in the meantime.
The decision on surgery
If the liver has grown enough and the cancer is still contained, the operation is planned. CION's surgical oncologists assess and plan these operations, and your team will tell you where the operation takes place.
On your report
What do the words in my scan and surgery letters mean?
- Portal vein embolisation (PVE)
- Blocking the blood supply from the portal vein to one side of the liver, so the other side grows before surgery.
- Future liver remnant (FLR)
- The part of the liver that will be left after the operation. Surgeons measure it on a scan as a share of the whole liver.
- Hypertrophy
- Growth of the remaining liver after embolisation. Your report may say how much it grew between the two scans.
- Hepatectomy
- Removal of part of the liver. A right or extended right hepatectomy is common for this cancer, together with the bile ducts.
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Commonly believed
Is the waiting time after embolisation lost time?
"Embolisation is a treatment for the cancer itself."
It is not. It blocks a vein, not the tumour's own supply. The cancer is treated by the operation that follows, and sometimes by chemotherapy before or after it.
"Waiting for the liver to grow lets the cancer spread."
That is a fair worry, and it is why the repeat scan checks the tumour as well as the liver. For most people the wait makes the operation safer. If the cancer does spread during the wait, an operation would not have helped either, and you are spared a major surgery.
"If the liver does not grow, nothing more can be done."
Other options remain. They include different surgical approaches in a few cases, and treatments for cancer that cannot be removed, such as chemotherapy with immunotherapy and good drainage of the bile.
"Cutting out part of the liver means living with half a liver."
The liver regrows after surgery. Within months the remaining part usually returns close to its earlier size. Embolisation simply starts that growth before the operation instead of after.
Not for everyone
Who does portal vein embolisation not suit?
Embolisation is only useful when a large liver operation is planned and the leftover liver is the problem. Many people with bile duct cancer never need it.
When the remnant is already big enough
If the operation removes only a small part of the liver, or none at all, as with the Whipple's operation for distal bile duct cancer, there is no reason to grow the liver first. That surgery removes the lower bile duct and part of the pancreas, not the liver.
When the tumour cannot be removed
If scans show the cancer around both sides of the liver's blood supply, or in distant lymph nodes or other organs, embolisation will not make surgery possible. The plan then moves to treatment when bile duct cancer cannot be removed.
When the bile cannot be drained or infection keeps returning
A liver that stays badly jaundiced or infected does not grow well, and a major operation is unsafe. The first job is then to get the drainage working. People who are too unwell for a large operation for other reasons, such as serious heart or lung disease, are also unlikely to be offered it.
Being straight with you
What can this page not tell you?
It cannot tell you whether your own liver remnant is big enough. That depends on measurements from your scans, your blood tests and the exact operation your surgeon has in mind.
It cannot predict how much your liver will grow
Growth varies from person to person. Long-standing jaundice, diabetes and a scarred liver can all slow it. The repeat scan is the only reliable answer.
It does not cover cancer that started elsewhere
Embolisation is also used before surgery for liver tumours and for cancer that has spread to the liver from the bowel. The reasons are similar, but the decisions differ. The general page on portal vein embolisation to grow the remaining liver covers those situations.
CION coordinates portal vein embolisation through accredited partner hospitals with interventional radiology. If you have been told you need it, you can ask the tumour board to review your scans first.Questions we are asked
Common questions about portal vein embolisation
Does portal vein embolisation hurt?
Most people feel some discomfort under the right ribs for a few days, and some have a mild fever or nausea. It is usually milder than the reaction after TACE, because the tumour itself is not being starved. Pain relief is given, and most people go home within a day or two.
How long do I wait between embolisation and surgery?
Usually several weeks. The exact wait depends on how fast your liver grows and how your jaundice and strength recover. Your team will book a repeat scan and decide the date from that, rather than from a fixed calendar.
What are the risks of the procedure?
Serious problems are uncommon. They include bleeding, infection in the bile ducts, and a clot or plug spreading into the vein supplying the side that should stay. Your interventional radiologist will explain the risks in your case before you sign consent.
Why must my jaundice be treated first?
A liver full of trapped bile regrows poorly and copes badly with surgery. Draining the bile from the side that will stay lets the liver recover first. If the stent or drain blocks during the wait, the growth can stall, so report fever or returning yellowing promptly.
Will chemotherapy be given during the wait?
Sometimes. It depends on the stage and on your team's plan. If treatment is suggested, ask what it is for and whether it could slow the liver's growth.
What if my liver does not grow enough?
The surgeons may judge the operation too risky. In a few cases another approach is discussed, such as a second procedure on the liver's veins. Otherwise the plan moves to treatment for cancer that cannot be removed. This is a hard result, but it can spare you an operation with a high risk.
Can I travel home to my district during the wait?
Often yes, if your drain or stent is working and you know where to go if fever starts. Ask your team who to call, and which nearby hospital can handle a blocked drain.
Can CION review my scans before I agree to this?
Yes. CION's tumour board can review your scans, reports and the proposed operation and tell you whether embolisation makes sense. Call the helpline and send what you have. One helpline serves every CION centre.
Your Specialists
Meet CION's liver cancer specialists. Bring your scan reports and liver blood tests.
Our medical and surgical oncologists plan liver cancer care together, weighing the tumour and how well your liver works before choosing surgery, a liver-directed procedure or medicines.
Medical Oncologist
Dr. C. Raghavendra Reddy
MBBS(Gold Medal), DNB(General Medicine), DM(Medical Oncology)(Gold Medal)
Medical Oncologist
Dr. Bharati Devi Gorantla
MBBS, MD(General Medicine), DM(Medical Oncology)(Adyar,Chennai), ECMO, MRCP SCE(UK)
Medical Oncologist
Dr. Owais Mohammed
MBBS, MD (General Medicine), DrNB (Medical Oncology), ECMO, MRCP SCE (Medical Oncology) (UK)
Medical Oncologist
Medical Oncologist
Surgical Oncologist
Dr. Muralidhar Muddusetty
MBBS (AIIMS), MS (Surgery) (AIIMS), DNB (Surgical Oncology), MRCS (Edinburgh)
Surgical Oncologist
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Sources
- American Cancer Society — Bile Duct Cancer Surgery
- National Cancer Institute — Bile Duct Cancer Treatment
- Cancer Research UK — Treatment for bile duct cancer
- Cancer Research UK — Surgery for liver 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
Surgery for perihilar bile duct cancerThe operation embolisation prepares you forFuture liver remnantThe measurement that decides whether you need itWhy a stent comes before any cancer treatmentDraining the bile is the first stepPortal vein embolisation to grow the liverHow the procedure itself is done
Talk to us
Been told you need embolisation before surgery?
Send us your scans and the surgical plan, and the tumour board will review whether embolisation makes sense for you. One helpline serves every CION centre.