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GELF and FLIPI: how doctors decide when to treat follicular lymphoma | CION Cancer Clinics
GELF is a checklist of findings, such as a mass at least 7 cm across, symptoms or falling blood counts, that usually means follicular lymphoma needs treatment. FLIPI is a separate score of five features at diagnosis that describes how active the disease may be. Meeting a GELF criterion starts the treatment talk. A high FLIPI score alone does not, and neither tells you how long you will live. At CION Cancer Clinics, our haematology team plans myeloma and lymphoma care with you, discussed at a tumour board and explained in plain words.
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Medically reviewed by Dr. Basudev PokhrelConsultant Haematologist · last reviewed September 2026, next review due September 2027
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On this page
- What is the difference between GELF and FLIPI?
- Which findings usually mean treatment should start?
- What adds a point to the FLIPI score?
- How do GELF and FLIPI compare?
- How does your team use these at each visit?
- What do people misread in these scores?
- What can these scores not tell you?
- Common questions about GELF and FLIPI
The short answer
What is the difference between GELF and FLIPI?
GELF is a checklist that helps decide when follicular lymphoma needs treatment. FLIPI is a score that describes how active the disease is likely to be. If you meet any GELF criterion, treatment is usually discussed. A high FLIPI score on its own does not mean treatment must start.
Why two tools and not one
They answer different questions. GELF, named after a French lymphoma research group, looks at what the lymphoma is doing to you right now: large masses, symptoms, falling counts. FLIPI, the Follicular Lymphoma International Prognostic Index, looks at features at diagnosis that are linked with a more or less settled course over time.
Where you will see them
You may see "GELF criteria not met" in a clinic letter, which usually supports watch and wait. You may see "FLIPI 2, intermediate risk" on a summary. Both are working tools for your haematologist. Neither is a verdict on your future.
Other checklists you may hear about
Some teams use the BNLI criteria, from a British lymphoma group, which are similar to GELF. A newer score called FLIPI-2 adds a blood marker, bone marrow involvement and the size of the largest node. Ask which one your team uses so you can follow the letters.
GELF, item by item
Which findings usually mean treatment should start?
Meeting any one of these is usually enough to discuss treatment. The exact cut-offs are applied by your team, alongside how you feel.
A large amount of lymphoma
Three or more separate node areas each at least 3 cm across, or any single mass at least 7 cm across.
Found on
- CT or PET-CT scan
- Examination of the nodes
Symptoms from the lymphoma
Fevers, drenching night sweats or weight loss without trying. Doctors call these B symptoms. They show the lymphoma is affecting the whole body.
Pressure on organs
An enlarged spleen causing trouble, or a node pressing on a kidney tube, a vein, the gut or an airway. Fluid collecting around the lungs or in the tummy also counts.
Falling blood counts
Low white cells or platelets because the marrow is crowded, or lymphoma cells appearing in large numbers in the blood.
Reference ranges differ between laboratories, and one low result is read alongside repeat tests and symptoms.Not sure whether this applies to you?
Ask an oncologistFLIPI, point by point
What adds a point to the FLIPI score?
- Age over 60
- Being older than 60 at diagnosis adds one point.
- Stage III or IV
- Lymphoma on both sides of the diaphragm, the muscle under the lungs, or outside the lymph nodes.
- Haemoglobin below 12 grams per decilitre
- Haemoglobin carries oxygen in the blood. Laboratory ranges differ, so your team reads this against your own report.
- Raised LDH
- LDH is an enzyme in the blood. Above the laboratory's upper limit adds a point.
- More than four node areas
- Lymphoma in five or more of the defined lymph node regions.
- The total
- 0-1 is low risk, 2 is intermediate and 3 or more is high risk.
Side by side
How do GELF and FLIPI compare?
GELF
FLIPI
Asks whether the lymphoma needs treatment now
Describes how settled or active the course may be
Used at diagnosis and at every follow-up
Worked out mainly at diagnosis
A yes or no, based on any one finding
A total of points, grouped into three risk levels
Changes the plan directly
Does not by itself start treatment
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In practice
How does your team use these at each visit?
Checking symptoms
You are asked about fevers, sweats, weight and energy. Tell the truth even if it feels minor. This part of GELF depends on you.
Examining and testing
Nodes are felt, the spleen is checked, and blood counts and LDH are taken. A scan is added if something has changed.
Weighing the whole picture
The findings are set against GELF. The FLIPI score, grade and your general health add context but do not override it.
Explaining the decision
You are told whether watching continues or treatment is advised, and which finding led to that. Ask to see it written in the letter.
Commonly believed
What do people misread in these scores?
"High-risk FLIPI means he has little time."
FLIPI groups were built from large studies, often before modern treatment. They do not predict what will happen to one person. Many people with a high score do well for a long time. Ask your haematologist to explain the score in your own situation.
"No GELF criteria means nothing is wrong."
It means treatment is not needed yet. The lymphoma is still there and still needs regular check-ups, because GELF can change from one visit to the next.
"We can work out the score ourselves from the report."
Some parts, like stage and node areas, need the full scan and an expert reading. Families who add up points from a report often get a different total. Let the team do it and explain it.
"A score of 0 means it will never come back."
A low score is encouraging, but follicular lymphoma often returns at some point whatever the score. Follow-up stays important.
Being straight with you
What can these scores not tell you?
Neither tool tells you how long you will live, and neither picks a treatment. They help your haematologist decide when to act and how closely to watch. The choice of treatment depends on the grade, your health, other illnesses and what matters to you.
Who these tools do not fit well
GELF was written for follicular lymphoma. It is used loosely for some other slow-growing lymphomas, but those have their own checklists. It is also not used for grade 3B disease, which is usually treated whatever the checklist shows. FLIPI was built for adults and is less useful in very young patients.
What to ask at your next visit
Ask which GELF criteria, if any, you meet today. Ask what your FLIPI score is and what it changes in your follow-up. Ask what would make them recommend treatment. At CION, the haematology team reviews your scans and blood reports and discusses the case at a tumour board before advising.
Questions we are asked
Common questions about GELF and FLIPI
If I meet one GELF criterion, must treatment start straight away?
Usually treatment is discussed and planned, but not always the same week. Your haematologist also considers how quickly things are changing and how you feel. A borderline finding may be rechecked first. If it is causing pressure on an organ, the plan tends to move faster.
Can my FLIPI score change?
FLIPI is mainly worked out at diagnosis, so it is not normally recalculated at every visit. Some teams work it out again before treatment starts or at relapse, when the lymphoma returns. What changes the plan at follow-up is GELF, not a new FLIPI total.
What is FLIPI-2?
It is a later version of the score. It keeps age and haemoglobin from the original, and adds beta-2 microglobulin, a blood protein, bone marrow involvement and the size of the largest node. It is used mostly for people starting modern treatment. Your team may use either version.
My haemoglobin is only a little below the cut-off. Does that matter?
It adds a point, but one result is not the whole story. Laboratory ranges differ, and low haemoglobin has many causes, including iron shortage. Your team will look at repeat tests and other findings before reading much into it. Do not start iron or tonics without asking.
Do these scores decide which treatment I get?
Not directly. They help with timing and how closely you are watched. The choice between rituximab alone and rituximab with chemotherapy depends more on how much lymphoma there is, its grade, your fitness and your own preferences.
Is a PET-CT needed to check GELF?
A CT or PET-CT is usually done at diagnosis to measure the nodes and stage the disease. Later, a scan is arranged when symptoms or tests suggest a change. Not every visit needs one, and your team will tell you when a scan will make a difference.
Can I be on watch and wait with a high FLIPI score?
Yes, if you meet no GELF criteria. A high score may mean more frequent check-ups, but it does not on its own mean treatment helps more when started early. Ask your haematologist how often you will be seen and which signs to report sooner.
Where can I get my reports reviewed?
Bring your biopsy report, scan reports and recent blood tests to a haematologist. At CION, the team reviews them and can explain which criteria apply to you. Treatment is often covered under Aarogyasri, PM-JAY, CGHS, ECHS, EHS or cashless insurance, but check the current rules for your scheme.
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Sources
- National Cancer Institute — Adult Non-Hodgkin Lymphoma Treatment (PDQ) - Health Professional Version
- National Cancer Institute — Adult Non-Hodgkin Lymphoma Treatment (PDQ) - Patient Version
- Cancer Research UK — Follicular lymphoma
- Leukemia & Lymphoma Society — Non-Hodgkin Lymphoma
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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