Medical Oncologist
CION Cancer Clinics
A lesion was found on my liver before an operation for something else. What now? | CION Cancer Clinics
A liver spot found on a scan before another operation is usually harmless, such as a cyst or a haemangioma. Whether your operation goes ahead depends on how urgent it is and whether the spot could change the plan. This page explains which operations usually proceed, which wait for a CT or MRI, what the follow-up involves and which signs mean you should not wait. At CION Cancer Clinics, our team goes through your scan, blood test and biopsy reports with you and plans the next step.
MM
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
- A scan before my operation showed a spot on my liver. Is it cancer?
- Does the spot change what happens with my operation?
- What will the doctors do before deciding on my operation?
- When does the operation usually go ahead, and when does it wait?
- What families often assume, and what is actually true
- What this page cannot tell you
- Common questions about a liver spot found before surgery
The short answer
A scan before my operation showed a spot on my liver. Is it cancer?
Most liver spots found on a scan before another operation turn out to be harmless. Scans done to plan gallbladder, hernia, kidney, uterus or stomach surgery often catch the liver too, and they pick up common things like a cyst, a haemangioma (a tangle of blood vessels) or a patch of uneven fat. A lesion only means an area that looks different from the liver around it.
The real question is about timing
Families usually ask two things at once. Is the spot dangerous, and should the operation go ahead? The answer to the second depends on how urgent the operation is, whether the spot could change what the surgeon does, and whether your liver itself is healthy enough for an anaesthetic.
Which liver cancer this page is about
When cancer is found in the liver, it has more often spread there from another organ than started in the liver. If your planned operation is for a cancer elsewhere, such as the bowel or stomach, read a lesion found on a scan for another cancer, because the spot may change your whole plan. The difference is set out on primary and secondary liver cancer.
Harmless is the likely answer. A follow-up scan is still how that answer is confirmed.It depends on the operation
Does the spot change what happens with my operation?
Surgeons think about the liver spot differently depending on why you need surgery in the first place.
An emergency operation
An inflamed appendix, a blocked bowel or a bleed is not delayed for a liver spot. The operation comes first and the liver is looked into once you recover.
A planned non-cancer operation
Knee, hernia, cataract or uterus surgery usually goes ahead. Your surgeon may ask for a CT or MRI first if it can be done quickly, or soon after.
Gallbladder or upper abdominal surgery
The surgeon will be working near the liver, so the spot is usually clarified first. Gallbladder cancer is a separate subject, covered on gallbladder cancer.
An operation for a cancer elsewhere
Here the spot matters most, because spread to the liver changes the plan.
What the team usually does first
- A contrast CT or MRI of the liver
- A tumour board review of all the scans
- Sometimes a biopsy, if scans cannot decide
Not sure whether this applies to you?
Ask an oncologist
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When this cannot wait
Go to hospital today if you have yellow eyes with a fever, vomit blood, pass black stools, become confused or very drowsy, or have sudden severe pain in the upper right abdomen. See a doctor this week if you have lost weight without trying, have hepatitis B, hepatitis C or cirrhosis, or have had cancer before. Tell the surgeon and the anaesthetist about all of these before any operation.
What happens next
What will the doctors do before deciding on my operation?
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Tell your surgeon about the report
Do not assume the surgeon has read the line about the liver. Ask directly whether it changes the plan or the timing.
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Blood tests
Liver function tests, hepatitis B and C tests, and clotting tests. These matter for the anaesthetic as well as for the spot. Sometimes AFP, a blood marker, is added.
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A clearer liver scan
Usually a triple-phase CT or a contrast MRI, which shows how blood flows into the spot. CION arranges these through diagnostic partners.
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A joint decision
Your surgeon, and an oncologist if needed, agree whether to operate now, wait or change the plan. For a cancer operation, the tumour board reviews the scans together.
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A sample only when planned
During an abdominal operation the surgeon may see the liver surface. Taking a sample is decided beforehand, never on a whim. A hydatid cyst must never be needled or drained without specialist planning, because spilling the cyst is dangerous.
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When does the operation usually go ahead, and when does it wait?
Usually goes ahead
Usually waits for the liver scan
The operation is urgent or an emergency
The operation is planned and can safely wait a short while
The spot looks clearly like a simple cyst
The spot is solid or the report says further evaluation advised
Your liver blood tests are normal
Blood tests suggest hepatitis, cirrhosis or a clotting problem
The operation is far from the liver and not for cancer
The operation is for a cancer, or is close to the liver
Commonly believed
What families often assume, and what is actually true
"While they are operating, they can just remove the liver spot too."
Liver surgery is a separate operation that needs its own planning, scans and consent. Most harmless spots never need removing at all.
"The operation is fixed, so the liver can wait until after."
Sometimes that is right. But the spot should not be forgotten after discharge. Put the follow-up scan in writing before you leave hospital.
"If it were serious, the surgeon would have cancelled the operation."
An unchanged plan only means the spot does not affect this operation. It does not mean the spot has been fully named. Ask who is following it up.
"The anaesthetic will make the liver spot grow."
An anaesthetic does not make a liver lesion grow. Liver health does matter for anaesthetic safety, which is why your blood tests are checked first.
Being straight with you
What this page cannot tell you
It cannot tell you what your spot is, or whether your own operation should go ahead. Those depend on the scan pictures, your blood tests and the operation itself. Only the surgeon who knows all three can weigh them.
Who this does not apply to
If the operation you are waiting for is for a known cancer, the spot needs a specialist answer before surgery, not after. If you have hepatitis B, hepatitis C or cirrhosis, a new lesion follows stricter rules, explained on a lesion in a cirrhotic liver. If you already have a scheduled date and are unsure, a second opinion before surgery can help.
Who can answer it
Your operating surgeon and anaesthetist decide on the timing. At CION, a surgical oncologist can review the liver report with your planned operation in mind, and the tumour board can look at a doubtful spot. Your team will tell you where any operation takes place.
Carry every scan and report, including older ones, to each appointment. An old scan showing the same spot is often the most reassuring evidence there is.Questions we are asked
Common questions about a liver spot found before surgery
Should my operation be postponed because of the liver spot?
Not always. Emergency operations go ahead. Planned operations far from the liver often go ahead too, with the liver scan done soon after. Operations for cancer, or close to the liver, usually wait for a clearer scan. Ask your surgeon which group yours falls into.
Is a liver spot found on a pre-operative scan usually cancer?
No. Most are cysts, haemangiomas or uneven fat. The first scan was planned for another organ, so it often cannot name the liver spot clearly. A contrast CT or MRI is how the likely harmless answer is confirmed. Do not skip it.
Can the surgeon take a biopsy during my operation?
Sometimes, but only if it was planned and you agreed beforehand. Many liver spots are diagnosed by scan alone, and some should not be needled at all. Read more about when a liver biopsy is necessary.
Is an anaesthetic safe if I have a liver lesion?
A lesion on its own rarely changes anaesthetic safety. What matters is how well the whole liver works. If your blood tests suggest cirrhosis or a clotting problem, the anaesthetist will plan around it. Tell them about any alcohol use honestly; it helps them keep you safe.
My operation is for bowel cancer. What does the spot mean?
It may be harmless, or it may be spread from the bowel, which changes the order of treatment. The team will want a liver MRI and a tumour board review first. Spread from bowel cancer to the liver is covered in the colon cancer section.
Who should arrange the follow-up scan if my operation goes ahead?
Agree this before discharge. Ask your surgeon to write the follow-up scan and its timing into your discharge summary, and keep a copy. Spots found before another operation are sometimes forgotten once the main problem is fixed.
What if the follow-up scan still cannot say what it is?
Then the spot is called indeterminate. The usual plan is a repeat scan after an agreed gap to see whether it changes. Sometimes a different scan or a biopsy is suggested. A doubtful spot is followed up carefully, not ignored.
Can CION look at the report before my operation?
Yes. A CION surgical oncologist can read the report alongside the details of your planned operation, suggest the right liver scan and arrange it through diagnostic partners. Call the helpline and bring every scan and report you have.
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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Our centres in and around Hyderabad
Addressed by landmark, because that is how this city navigates. One helpline books a consultation at any of these centres, and your team will tell you where each test and operation takes place.
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Sources
- Liver UK (formerly British Liver Trust) — Benign liver tumours
- Liver UK (formerly British Liver Trust) — Liver Cysts
- American Cancer Society — Diagnosing Liver Cancer
- Cancer Research UK — Secondary 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
What happens next after an incidental liver lesionThe follow-up steps, one at a timeA lesion found on a PET scan for another cancerIf your operation is for a cancer elsewhereCT or MRI for a liver lesionWhich follow-up scan suits which situationSecond opinion before cancer surgeryWhen a second look before an operation helps
Talk to us
Should my operation wait for this liver scan?
Send us the scan report and the details of the planned operation, and a surgical oncologist will explain what the spot could change and what to check first. One helpline serves every CION centre.