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What a liver cancer radiology report means, line by line | CION Cancer Clinics
Read the impression at the end first, then the findings that explain it. A liver CT or MRI report uses fixed phrases, such as arterial enhancement, washout and LI-RADS, to describe how a spot behaved when contrast dye flowed through. This page explains each part of the report in plain words, which lines matter most, and what the report cannot tell you on its own. At CION Cancer Clinics, our team goes through your scan, blood test and biopsy reports with you and plans the next step.
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Medically reviewed by Dr. Naresh GunduConsultant Medical Oncologist · MBBS, DNB (Internal Medicine), DM (Medical Oncology, AIIMS) · last reviewed October 2026, next review due October 2027
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On this page
The short answer
How do I read a liver CT or MRI report?
Skip to the last paragraph first. It is usually called the impression or conclusion, and it is the radiologist's summary of everything above it. Then go back to the findings to see what the summary is based on: where the lesion is, how big it is, and how it behaved when the dye went in.
Why the report reads like a code
A radiology report is written for the doctor who asked for the scan, not for you. It uses fixed phrases so that another radiologist, months later, can compare like with like. Phrases such as "arterial enhancement" and "washout" sound alarming but are simply descriptions of how a spot lit up and faded over the scan.
Primary or secondary?
Many liver spots on a report are not primary liver cancer at all. Some are harmless, such as a cyst or a haemangioma. Some are cancer that spread from another organ. If your report mentions metastases or "secondaries", read what liver metastases means. This page focuses on reports written when the question is primary liver cancer, called HCC.
No page can tell you whether your lesion is cancer. The report is one step, read alongside your blood tests and history.Top to bottom
What does each part of the report say?
Clinical history
One line on why the scan was done, such as "known hepatitis B, nodule on ultrasound". If it is wrong or missing, tell your doctor. The radiologist reads the pictures with that question in mind.
Technique
Which scan and which phases. For the liver, a triple-phase CT or a contrast MRI takes pictures at several moments after the dye goes in. A plain scan without dye answers far less.
Findings
The liver first: its size, outline and texture. Then each lesion, with its segment, size and behaviour in each phase. Then the vessels, the spleen, any fluid, lymph nodes and the other organs in view.
Impression
The summary and, often, a category such as LR-4 or LR-5, with a suggestion for what to do next. This is the line your oncologist will look at first.
Not sure whether this applies to you?
Ask an oncologistThe phrases that matter
What do arterial enhancement, washout and LI-RADS mean?
Liver cancer behaves in a typical way when contrast dye flows through the liver. These phrases describe that behaviour.
Arterial phase hyperenhancement
The spot lights up brightly in the early pictures, when dye is in the arteries. HCC takes most of its blood from arteries, so it often does this. Some harmless spots do too.
Washout
In the later pictures, the spot turns darker than the liver around it. Bright early, dark later is the pattern radiologists look for in HCC.
The word means the dye has faded from the spot. It does not mean anything has been washed away.Capsule
A thin bright rim around the spot in the late pictures. It is another feature that, with the two above, supports the diagnosis.
LI-RADS category
A scale from LR-1 to LR-5 that says how likely a spot in an at-risk liver is to be HCC. LR-1 is definitely harmless, LR-5 is definitely HCC, and LR-3 sits in the middle.
Also seen
- LR-M: probably cancer, but not typical HCC
- LR-TIV: tumour growing into a vein
- LR-TR: a spot already treated
Other lines you will see
What do the other words on my report mean?
- Coarse or nodular liver
- The liver surface looks lumpy and the texture uneven. This usually points to cirrhosis, meaning long-term scarring.
- SOL (space-occupying lesion)
- Any spot taking up space in the liver. It says nothing about what the spot is. See what SOL means on an Indian report.
- Segment
- The liver is divided into eight parts, numbered with Roman numerals. The segment tells surgeons and radiologists exactly where the spot sits.
- Portal vein thrombus
- A clot in the main vein entering the liver. The report may say if it looks like a plain clot or tumour growing into the vein. This changes the plan a great deal.
- Splenomegaly, ascites, varices
- A big spleen, fluid in the belly and swollen veins. All three are signs of raised pressure in the liver's veins, called portal hypertension.
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Commonly believed
What do people often misread on a liver scan report?
"The report says lesion, so it must be cancer."
Lesion only means something different from the surrounding tissue. Most liver lesions found by chance are harmless, such as cysts and haemangiomas. Still keep any follow-up scan you were asked to have.
"No biopsy has been done, so nobody can be sure."
HCC is one of the few cancers that can be diagnosed on a good-quality scan alone, in a liver known to be at risk. An LR-5 result is reliable enough that a biopsy often adds little. Read why HCC can be diagnosed without a biopsy.
"LR-3 means the doctors are unsure, so it can be ignored."
LR-3 means the spot needs watching. The usual next step is a repeat scan, sometimes sooner than routine. Missing it is how small, treatable cancers get missed.
"A bigger number on the report means a worse cancer."
Size is one feature. How many spots there are, whether a vein is involved and how well the rest of the liver works matter just as much to the plan.
Being straight with you
What this page cannot tell you
It cannot read your report for you. The same phrase can mean different things in a healthy liver and a cirrhotic one, and LI-RADS only applies to people at high risk, such as those with cirrhosis or long-standing hepatitis B. A spot in a healthy liver is read in a different way.
It cannot replace looking at the pictures
The report is a summary. Your oncologist and the tumour board look at the images themselves, not just the words. Bring the scan on a CD or a download link as well as the paper. If the scan was done without the right phases, the team may ask for a repeat, which CION arranges through diagnostic partners.
Who this does not apply to
Children, people with cancer known to have started elsewhere, and people with a suspected bile duct tumour are assessed differently. Bile duct tumours usually need a biopsy, which the liver biopsy guide explains.
If you want a second view on a scan, ask about a review of your images. See second opinions on liver imaging.Questions we are asked
Common questions about liver scan reports
What is the most important line on the report?
The impression or conclusion at the end. It gives the radiologist's overall view and often a LI-RADS category or a suggested next step. The findings above it explain how they got there. Your oncologist will read both, and look at the images too.
What does LR-4 mean?
It means the spot is probably HCC, but not certainly. It shows some of the typical features without the full pattern. The next step is usually another scan type, a closer repeat scan or sometimes a biopsy. The tumour board decides which fits you.
My report says hypodense lesion. What is that?
Hypodense means the spot looks darker than the liver around it on CT. Hyperdense means brighter. On MRI the words are hypointense and hyperintense. On their own they describe appearance, not what the spot is.
Why does the report mention my spleen and veins?
Because they show how much strain the liver is under. A big spleen, swollen veins and fluid in the belly point to portal hypertension. That affects which treatments are safe, so the radiologist reports them even when the question was about a tumour.
Can two radiologists read the same scan differently?
Yes, especially for small or borderline spots. This is one reason LI-RADS exists, to make reports more consistent. If a decision rests on a borderline reading, asking for a second review of the images is reasonable and common.
Do I need a PET-CT after this scan?
Usually not for HCC. A routine PET-CT often misses HCC, so triple-phase CT or contrast MRI remain the main tests. A PET-CT is sometimes used to look for spread elsewhere. Your team will say if you need one.
The report recommends correlation with AFP. What does that mean?
The radiologist is suggesting your doctor check the AFP blood test, a marker that is raised in some liver cancers. It is read together with the scan. A normal AFP does not rule out HCC, and a raised one does not prove it.
Who can go through my report with me?
The doctor who ordered the scan is the first person to ask. For a second view, CION oncologists can review your report and images with you and explain what happens next. 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 College of Radiology — ACR Liver Imaging Reporting & Data System (LI-RADS®)
- American Cancer Society — Diagnosing Liver Cancer
- EASL — EASL Clinical Practice Guidelines: management of hepatocellular carcinoma
- Cancer Research UK — Diagnosing 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.
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