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Follicular B-cell lymphoma

 

About Lymphoma > Types of Lymphoma > Follicular (Center Cell) Lymphoma

Last update: 03/14/2010

TOPICS
Overview
| Subtypes | Grade 3 | Cutaneous
Treatment
& Clinical Trials | Research News

TOPIC SEARCH: PubMed: Diagnosis | Review | Therapies | Prognosis | Refractory 
Therapies: ASCO | Medscape | FDA | Web

ABOUT Lymphomas


Lymphoma is a cancer

About Lymphoma - general

Characteristics
  Cell type | Histology   Grading | Staging

 Ann Arbor Staging 
  Extranodal notations  

 Diagnosis 

Host/tumor
interaction and the microenvironment 

Lymphatic System

Prognostic Indicators  

Overview of genes 
and cancer

Risk Factors

Statistics
 
Staging
 
Symptoms

 
Transformation

 Guidelines at diagnosis
 
Treatment Decisions
 
 When to treat?

Treatments

Watch & Wait
  

Lymphomas versus "solid" cancers

It's common to be diagnosed with lymphoma at an advanced stage (III or IV) and with bone marrow involvement. While this might seem alarming, you should know that advanced stages of lymphoma can be treated successfully, and that lymphoma in the bone marrow is as reversible as lymphoma anywhere in the body.

One way to understand this is to compare lymphoma with a so-called solid tumor, such as a prostate cancer.  Here the cell of origin does not normally exist anywhere but in the prostate. So when you find malignant prostate cells in the lymph nodes, or in the bone marrow, you have a big problem. Compare with blood cells that we expect to move anywhere in the lymphatic or circulatory system, including the nursery for these cells, the bone marrow.

Another favorable aspect of blood cancers is that they are generally much more sensitive to treatment than "solid" tumors, probably because blood cells are more poised to self- destruct, and they can also regenerate more readily from stem cells in the marrow.  Consider that the main side effect of chemotherapies is a drop in blood counts, but not the destruction of normal prostate or breast cells ...

We're not suggesting that lymphoma is not a life-threatening disease. It is. But we know that many types of lymphomas can be managed well, other types can be cured, and the potential to make additional progress against this family of diseases is real. 

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Follicular (center cell) non-Hodgkin's Lymphoma is a b-cell cancer - a b-cell is type of lymphocytes or white blood cell that normally defends you against bacteria and other types of pathogens that cause illness.

"Follicular" describes the cell type. B-cells arise from the bone marrow and mature or differentiate into many cell types that migrate to different areas of the body. Normal follicular b-cells reside in the germinal center of lymph nodes.  The majority of follicular lymphoma have an indolent (slow growing) clinical course.

B-cell stage: mature, after antigen exposure

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What is lymphoma?

Lymphomas result when damage to DNA occurs to a type of white blood cell (a lymphocyte) that results in the abnormal production of proteins that prevents the cells from dying when they should, or causes sustained rapid cell division. 

These malignant cells then may accumulate to form tumors that may enlarge the lymph nodes or spread to other areas of the lymphatic system, such as the spleen or bone marrow. 

Lymphoma cells can also migrate to, or first appear, outside the lymphatic system.  Lymphoma that presents outside the lymphatic system is called extranodal disease.  For details, see Lymphoma simplified.

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Incidence

Follicular non-Hodgkin's Lymphoma (NHL) is a very common type of b-cell lymphoma, comprising approximately 30% of all cases. There are about 61,000 new cases of NHL diagnosed annually. Therefore, there are approximately 18,300 new cases of follicular NHL diagnosed annually. Follicular lymphomas account for 70% of indolent (slow growing) lymphomas. The mean age at diagnosis is about 60 to 65 years. 

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Diagnosis   

To make an accurate diagnosis of lymphoma, a biopsy must be performed by the surgical removal (resection) of a lymph node. A fine needle aspiration may be performed if a lymph node is not accessible, but this is not considered a definitive way to determine the diagnosis.

A series of tests will then be performed to determine the characteristics of the cells. If a malignancy is determine, these characteristics will allow your doctors to determine the appropriate treatments to use when needed.  

Resources:

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Indolent Lymphomas: Classic Subtypes and Newer Entities moffitt.org
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Identification of B-cell lymphoma ibms.org pdf 

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Staging

Staging refers to the how widespread the disease is. Imaging tests (CT MRI, PET, Gallium) and bone marrow biopsies are commonly done to estimate this. See Staging for more detail.

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Common symptoms

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fatigue (anemia)

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loss of appetite

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feeling of fullness or discomfort due to enlarged liver or spleen

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enlarged lymph nodes - painless swelling in the neck, armpit or groin - often in more than one group

Other symptoms may include night sweats, unexplained high temperatures and weight loss. These are known as B symptoms.

Prognostic indicators
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The variable natural history
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Indolent grade

"Follicular lymphomas are characterized by relatively long median survivals and a continuous pattern of relapse. The heterogeneity (variable clinical courses) in these diseases is increasingly appreciated, leading to concerted efforts to define prognostic factors and risk-adapted strategies."
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Grade 3
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Prognostic Indicators
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FLIPI  Follicular Lymphoma International Prognostic Index
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Resources
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NEW Clinical Features, Prognosis and Treatment of Follicular Lymphoma
Gilles Andre Salles, MD, PhD, Centre Hospitalier Lyon-Sud, 165, Ch du Grand Revoyet,  asheducationbook.hematologylibrary.org  2007

The therapeutic strategies in follicular lymphoma have been transformed by monoclonal antibodies, used alone or in combination with chemotherapy. Treatment options should be adapted to the clinical features at diagnosis and appear to be able to modify the overall survival of some subgroups of patients. Further efforts may focus on strategies that can alter the natural history of this disease.
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Aiming at a Curative Strategy for Follicular Lymphoma caonline.amcancersoc.org  Maurizio Bendandi,MD, PhD   

One clear fact is that no patients will ever be cured by adopting a palliative treatment approach. The assumption that patients with follicular lymphoma are incurable is certain to be a self-fulfilling prophecy. Here the author summarizes the large and growing body of knowledge that suggests an expectant approach to management is not appropriate for all patients. (CA Cancer J Clin 2008;58:305–317.) © American Cancer Society, Inc., 2008.

http://caonline.amcancersoc.org:80/cgi/reprint/58/5/305?eaf  
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Evolving Paradigms in Follicular Lymphoma: Re-Evaluating Prognostic Factors and Challenging Treatment Dogmas molecularonc.com 
Cara A. Rosenbaum, MD

Current clinical indices and molecular markers in follicular lymphoma must be re-evaluated and incorporated actively into prospective trials to allow development of risk-adapted treatment guidelines and novel targeted therapies. The results of such studies will help to further recommendations regarding the effective timing of therapeutic intervention (ie, watchful waiting versus active treatment) and the efficacy of various chemotherapeutic regimens in different patient populations.
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Non-Hodgkins Lymphomas Clinical Practice Guidelines in Oncology – v.1.2006  nccn.org pdf 
bulletLow grade Lymphoma   asheducationbook.org /2004 full text
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Follicular NHL, overview  
asheducation | emedicine
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Follicular NHL, technical   
Umdnj.edu
| Cancer Genetics Web | infobiogenl


Subtypes of Follicular Lymphoma

Subtypes of Follicular non-Hodgkin's lymphomas

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Follicular lymphomas are further categorized by cell size: "The cells of follicle center lymphomas are derived from the germinal center cells of the normal lymph node. This category in the Working Formulation encompasses three different tumor types: 

follicular predominantly small-cleaved (generally slower growing), 
 
follicular mixed small-cleaved and large-cell, and 
 
follicular predominantly large-cell (generally faster growing). 

In the Kiel classification, these tumors are included within the centroblastic/centrocytic and follicular centroblastic classifications." 
source: cancernetwork

[1375] Extranodal Follicular Lymphoma - a Retrospective Review and Comparison with Localized Nodal Follicular Lymphoma. Session Type: Poster Session 529-I - ASH 2004 | Terms of Use

Predictive signatures came from immune cells: 

" Two signatures [in follicular lymphomas] -- one which indicated poor prognosis, the other good--had strong synergy and together predicted survival better than any other model tested.

Unexpectedly, both came from nonmalignant immune cells infiltrating the tumors. The good prognosis signature genes reflect a mixture of immune cells that is dominated by T cells. T cells react to specific threats to the body's health. In contrast, the poor prognosis signature genes reflect a different group of immune cells dominated by macrophages and/or dendritic cells--which react to nonspecific threats--rather than T cells.  http://www.cancer.gov/ 

Also see Host/tumor interaction and the microenvironment 

See more on each subtype below.

Follicular
Large-Cell 
(Grade 3)

As tumor classification systems evolve, research using older systems may show different results than newer systems. As insights into genetic and molecular aspects of tumors are discovered it is hoped that treatment strategies more tailored to an individual's tumor will be identified. This will take research and will be facilitated by participation in research trials. 

- Anjou NHL-info

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Follicular Large-Cell (Grade 3)

TOPIC SEARCH: Ash-Education | PubMed

Grade 3 Follicular lymphomas make up only a minority of all Follicular lymphomas. 

Follicular Large cell lymphomas may have a more aggressive clinical behavior, and therefore treatments may be initiated early with intend to cure or produce durable remissions.

Grade 3 confusion:  
 
"The WHO classification system recommends separating FL (follicular lymphoma) into three different grades according to the number of centroblasts per high-power field: 
 
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grade 1 (<5 centroblasts/hpf) 
 

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grade 2 (5-10 centroblasts/hpf) 
 
Grade 1 and 2 are now considered the same entity 
(observed and treated the same) 

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grade 3 (>15 centroblasts/hpf)  (large cell)

"Also, it is recommended that in addition to a grade the biopsy be scored for the amount of diffuse component present. The clinical importance of grade and diffuseness are unclear and generate much debate." ~ Halaas, et. al.  (ASH 2003 - abstract)

Resources and Reports:
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Compiled abstracts: Follicular grade 3 lymphoma
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NEW Gene expression analysis provides a potential rationale for revising the histological grading of follicular lymphomas, May 2008 http://www.haematologica.org/cgi/content/full/93/7/1033
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Non-Hodgkins Lymphomas 
Clinical Practice Guidelines in Oncology – v.1.2006  nccn.org professionals pdf 
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Low-Grade Lymphoma, Hematology 2004  asheducationbooks
Jane N. Winter, Randy D. Gascoyne and Koen Van Besien
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Cytologic subtypes of grade 3 follicular lymphoma bloodjournal.hematologylibrary.org 

The authors conclude that the 3a-3b distinction does not correlate with response to treatment or with clinical outcome. But the presence and extent of a diffuse large-cell component does correlate with behavior of the disease. The latter finding appears to justify the WHO-sanctioned practice of rendering a separate diagnosis of diffuse large B-cell lymphoma in such cases. 
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Patients with grade 3 follicular lymphoma have prolonged relapse-free survival following anthracycline-based chemotherapy: the Nebraska Lymphoma Study Group Experience. Ann Oncol. 2006 Jun;17(6):920-7. Epub 2006 Mar 8. PMID: 16524969  Full text 
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Follicular Lymphoma grade 3B. A separate entity? dissertations.ub.rug.nl
Bosga-Bouwer, Annigje Geesje (Technical)
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Natural history of follicular grade 3 non-Hodgkin's lymphoma. Bierman PJ. Curr Opin Oncol. 2007 Sep;19(5):433-7. Review
Reports
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A Clinicopathologic Evaluation of Follicular Lymphoma Grade 3A Versus Grade 3B Reveals No Survival Differences  http://findarticles.com  

In summary, we present a series of pure FL grade 3. Subtyping into FL grades 3A and 3B subtypes, as proposed by the WHO classification, did not appear to be useful as a prognostic factor for overall survival. Previous lower grade FL or treatment with anthracycline-containing regimens did not appear to confound the analysis. Despite our findings, it may be that important biologic differences between these subtypes exist. Since morphologic clues often provide leads for further investigation, it is premature to argue against the continued practice of subtyping. Further characterization of such cases at the genetic and protein-expression levels may yield clinically important factors that do predict outcome.
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A significant diffuse component predicts for inferior survival in grade 3 follicular lymphoma, but cytologic subtypes do not predict survival. Blood. 2003 Mar 15;101(6):2363-7. Epub 2002 Nov 07. PMID: 12424193   full text | related abstracts
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PubMed abstracts for Large cell follicular:  
Review
TherapyDiagnosis
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Follicular Large Cell Lymphoma: An Aggressive Lymphoma That Often Presents With Favorable Prognostic Features  bloodjournal.org
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Grade 3 and anthracycline-containing treatments [such as CHOP]
Commentary from Experts  PAL

Follicular
Mixed-Cell

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It's common to find a mix of cell-sizes in the diagnosis of follicular lymphoma. 

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PubMed abstracts for:  ReviewTherapyDiagnosis

Follicular
Small-Cell/
Cleaved

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Most common cell-size subtype of follicular lymphoma. An indolent (slow growing) lymphoma.

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PubMed abstracts for: ReviewTherapyDiagnosis

Cutaneous - skin
(extranodal)

 
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Sometimes follicular lymphomas are first diagnosed in the skin (present there),  or spread to the skin later on.  When lymphomas that normally present in the lymphatic system moves to other areas it is called extranodal disease.  Spreading to the skin is not necessarily considered a negative prognostic indicator. 

Also see Extranodal lymphomas

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Follicular Center Cell Lymphomas of the Skin  thedoctorsdoctor.com
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Cutaneous follicle center lymphoma: a clinicopathologic study of 19 cases. Mod Pathol. 2001 Sep;14(9):828-35. PMID: 11557777   PubMed
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Cutaneous presentation of follicular lymphomas.
Mod Pathol. 2001 Sep;14(9):913-9. PMID: 11557789   PubMed

 
Treatments

Treatments

Also see

Questions for your doctor - Patients Against Lymphoma
General, Treatment, Side Effects, and Tests

Factors that determine treatment timing and approach:  

The characteristics of the lymphoma at diagnosis as determined by the pathology report, and it's actual clinical behavior, and other factors determine the type of treatment and the timing of treatment you and your doctor will consider. 

The good news is that lymphomas are often sensitive and responsive to treatments. Aggressive lymphoma are often cured, and indolent (slow growing) lymphomas are often managed effectively. Importantly, recent advances in the understanding of lymphoma has led to effective new therapies and better therapies are certain to follow.  

For indolent lymphomas, treatment is often deferred until the patient becomes symptomatic. For aggressive lymphomas treatment is typically initiated early with intent to cure.

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See Factors that influence treatment selection and timing  - PAL
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There is no apparent standard treatment for indolent follicular lymphomas. 
Current practices include:

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Watchful waiting until symptoms, marked progression, or transformation occurs, 

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Management with single agent chemotherapy and/or Rituxan when needed.

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Numerous Investigational therapies. See below.

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Aggressive early treatments with combination therapies for high-risk disease, such as when the lymphoma is resistant to initial treatments.

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Radioimmunotherapy, with Zevalin or Bexxar

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Stem cell transplants, ablative and mini (non-ablative).

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Radiotherapy, which may cure if treated when in stage I or II

TOPIC SEARCH: PubMed: Review | Therapies 
 ASCO | Medscape | FDA Web

General Guidelines for Indolent Lymphomas:
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Adult Non-Hodgkin’s Lymphoma ~ Best Practice  Cancer.gov  
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Considerations at Relapse  PAL
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Treatment decisions - factors that determine  PAL
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Watchful waiting   PAL
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Elderly ~ treatments for  PAL
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Refractory (resistant to treatment) resource page  PAL
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Transformed disease  PAL
Related News and Resources
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NEW: R-CHOP versus R-CVP in the treatment of follicular lymphoma: a meta-analysis and critical appraisal of current literature  pubmedcentral.nih.gov 
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Aiming at a Curative Strategy for Follicular Lymphoma caonline.amcancersoc.org  
Maurizio Bendandi,MD, PhD   

One clear fact is that no patients will ever be cured by adopting a palliative treatment approach. The assumption that patients with follicular lymphoma are incurable is certain to be a self-fulfilling prophecy. Here the author summarizes the large and growing body of knowledge that suggests an expectant approach to management is not appropriate for all patients. (CA Cancer J Clin 2008;58:305–317.) © American Cancer Society, Inc., 2008.

http://caonline.amcancersoc.org:80/cgi/reprint/58/5/305?eaf  
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Cure for fNHL? Radiolabeled and Native Antibodies and the Prospect of Cure of Follicular Lymphoma theoncologist.alphamedpress.org 

"In this review, we hypothesize that the combination of an optimized biological treatment together with radiolabeled antibodies and chemotherapy early in the disease course of advanced-stage follicular lymphoma may represent the best approach to achieve prolonged disease-free survival and eventually cure."
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Cure word used: Mini-BMT: follicular Non-Hodgkin's Lymphoma Cure? www.webmd.com
83% in Complete Remission 5 to 9 Years After Mini-BMT for Follicular Lymphoma
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Stage I and II Follicular Non-Hodgkin’s Lymphoma: Long-Term Follow-Up of No Initial Therapy ~ Ranjana Advani, Saul A. Rosenberg, Sandra J. Horning 2004 - full text article   jco.org 
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Treatment of Non-Hodgkin's Lymphoma: Next Steps - Medscape.com 2004 (free login req.) Review of progress for Follicular, SLL, Diffuse Large Cell, and Mantle Cell.
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Follicular Lymphoma, Treatment Policy - Dr. Louise Bordeleau  PDF | PDF-Help
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Treatment overview  PAL
ClinicalTrials.gov (easy and comprehensive) searches by
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Lymphoma subtype
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Treatment type
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State or Country
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Other criteria such as age, stage, phase, refractory

Research News

TOPIC SEARCH: WebNews

Research News

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Technical: Atlas of Genetics and Cytogenetics in Oncology and Haematology - Follicular lymphoma http://bit.ly/8LTric 
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Molecular pathways in follicular lymphoma  nature.com  pdf 

RJ Bende, LA Smit and CJM van Noesel,  Department of Pathology, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
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Survival Improving for Patients with Stage IV Follicular Lymphoma  cancerconsultants.com

Researchers from the M.D. Anderson Cancer Center have reported that overall survival and failure-free survival of patients with stage IV follicular non-Hodgkin’s lymphoma (NHL) has significantly improved between 1972 and 2002. The details of this study appeared in the April 1, 2006, issue of the Journal of Clinical Oncology.
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Bcl-2 negative: Follicular center cell lymphoma with the t(14;18) translocation in which the rearranged BCL-2 gene is silent. Leukemia. 1993 Nov;7(11):1834-9.
PMID: 7694006  PubMed | Related Abstracts
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Low-grade stage III-IV follicular lymphoma: multivariate analysis of prognostic factors in 484 patients--a study of the groupe d'Etude des lymphomes de l'Adulte.
J Clin Oncol. 1999 Aug;17(8):2499-505. PMID: 10561315  PubMed
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Clinicopathologic correlations of genomic gains and losses in follicular lymphoma.
J Clin Oncol. 2002 Dec 1;20(23):4523-30. PMID: 12454108  PubMed
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Interferon in Oncological Practice: Review of Interferon Biology, Clinical Applications, and Toxicities  Eric Jonasch, Frank G. Haluska Massachusetts General Hospital, Boston, Massachusetts, USA  alphamedpress.org
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Combined therapy in advanced stages (III and IV) of follicular lymphoma increases the possibility of cure: results of a large controlled clinical trial. Eur J Haematol. 2002 Mar;68(3):144-9. PMID: 12068794  PubMed
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High-Dose Therapy for Follicular Lymphoma  Oncology Arnold Freedman, MD, Jonathan W. Friedberg, MD , and John Gribben, MD, PhD Department of Medicine, Harvard Medical School, Dana-Farber Cancer Institute, Boston, Massachusetts
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Prolonged single-agent versus combination chemotherapy in indolent follicular lymphomas: a study of the cancer and leukemia group B.
J Clin Oncol. 2003 Jan 1;21(1):5-15. PMID: 12506163  PubMed
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New Treatment Options Have Changed the Survival of Patients With Follicular Lymphoma. J Clin Oncol. 2005 Oct 17;  PMID: 16230674 | Related articles
 
Disclaimer:  The information presented on Lymphomation.org is not intended to be a substitute for 
professional medical advice or to replace your relationship with a physician.
For all medical concerns,  you should always consult your doctor. 
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