What are the limitations of the flipi follicular lymphoma ipi?

While the flipi follicular lymphoma ipi is highly validated, it should not replace clinical judgment. OpiCalc provides the latest evidence-based limitations for the flipi follicular lymphoma ipi to ensure safe bedside use and optimal diagnostic accuracy.

How does the flipi follicular lymphoma ipi compare to other Hematology scores?

The flipi follicular lymphoma ipi is a gold-standard diagnostic tool. OpiCalc provides side-by-side clinical guidance to help clinicians choose the most specific evidence-based tool for their patient's presentation.

Is the flipi follicular lymphoma ipi free to use?

Yes. OpiCalc provides the flipi follicular lymphoma ipi completely ad-free and optimized for mobile bedside use, ensuring you can calculate medical risk swiftly and without distraction.

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FLIPI (Follicular Lymphoma IPI)

FLIPI: International prognostic index for Follicular Lymphoma. Score 0–5 based on baseline clinical and laboratory parameters.

Total FLIPI Score

0

Risk Group

Low Risk

Original 5-yr Overall Survival: 91%

Guidelines & Evidence

Clinical Details

Section 1

When to Use

Prognostication of patients with Follicular Lymphoma (FL) at the time of diagnosis.

Differentiating risk groups to determine the relative aggressiveness of the disease.

Educational or research-based risk stratification.

Patient Population

Newly diagnosed patients with Follicular Lymphoma. Derived in the pre-rituximab era but maintains prognostic value in the modern era.

Important Clarification

The FLIPI score identifies risk groups but should NOT be used alone to decide whether to start treatment (the GELF criteria are used for that).

Section 2

Formula & Logic

Scoring variables (+1 point each)

Age ≥ 60 years

Ann Arbor Stage III or IV

Haemoglobin < 12 g/dL

Nodal areas > 4 (involved)

Serum LDH > upper limit of normal

Risk Groups

Score	Risk Group	5-year OS	10-year OS
0 - 1	Low	91%	71%
2	Intermediate	78%	51%
≥ 3	High	53%	36%

Section 3

Pearls/Pitfalls

The Rituximab Era

While FLIPI was derived in 2004, its prognostic groups remain distinct even in patients treated with Rituximab (R-CHOP/R-CVP), though the overall survival percentages have significantly improved since the original publication.

Nodal Areas (Ann Arbor)

Cervical, Axillary, Inguinal, Mediastinal, Hilar, Para-aortic, Mesenteric, and Iliac.

Section 4

Evidence Appraisal

Primary Score

Follicular lymphoma international prognostic index.

Solal-Céligny P et al. • Blood. 2004;104(5):1258-65. n=4,167 patients.

View Source

Section 5

Literature

Development

Developed by the International Follicular Lymphoma Prognostic Factor Project to provide a specific tool for FL, which behaves differently from the aggressive lymphomas covered by the original IPI.

Last Comprehensive Review: 2026

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