X linked Lymphoproliferative Syndrome

National Organization for Rare Disorders, Inc.

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It is possible that the main title of the report X linked Lymphoproliferative Syndrome is not the name you expected. Please check the synonyms listing to find the alternate name(s) and disorder subdivision(s) covered by this report.


  • Duncan Disease
  • EBV Susceptibility (EBVS)
  • Epstein-Barr Virus-Induced Lymphoproliferative Disease in Males
  • Immunodeficiency-5 (IMD5)
  • Purtilo Syndrome
  • X-Linked Progressive Combined Variable Immunodeficiency
  • XLP

Disorder Subdivisions

  • None

General Discussion

X-linked lymphoproliferative (XLP) syndrome is an extremely rare inherited (primary) immunodeficiency disorder characterized by a defective immune system that is powerfully responsive to infection with the Epstein-Barr virus (EBV). This virus is common among the general population and is relatively well-known because it is the cause of infectious mononucleosis (IM), usually with no long-lasting effects. However, in individuals with XLP, exposure to EBV may result in severe, life-threatening fulminant hepatitis; abnormally low levels of antibodies in the blood and body secretions (hypogammaglobulinemia), resulting in increased susceptibility to various infections; malignancies of certain types of lymphoid tissue (B-cell lymphomas); and/or other abnormalities. The range of symptoms and findings associated with XLP may vary considerably from case to case. In addition, the range of effects may change in an affected individual over time. In most cases, individuals with XLP experience an onset of symptoms anytime from ages about 6 months to 10 years of age.

Supporting Organizations

Center for International Blood and Marrow Transplant Research

Froedtert and the Medical College of Wisconsin Clinical Cancer Center
9200 W. Wisconsin Avenue
Milwaukee, WI 53226
Tel: (414)805-0700
Fax: (414)805-0714
Email: contactus@cibmtr.org
Website: http://www.cibmtr.org/

European Society for Immunodeficiencies

1-3 rue de Chantepoulet
Geneva, CH 1211
Tel: 410229080484
Fax: 41229069140
Email: esid@kenes.com
Website: http://www.esid.org

Genetic and Rare Diseases (GARD) Information Center

PO Box 8126
Gaithersburg, MD 20898-8126
Tel: (301)251-4925
Fax: (301)251-4911
Tel: (888)205-2311
Website: http://rarediseases.info.nih.gov/GARD/

Immune Deficiency Foundation

110 West Road
Suite 300
Towson, MD 21204
Tel: (410)321-6647
Fax: (410)321-9165
Tel: (800)296-4433
Email: idf@primaryimmune.org
Website: http://www.primaryimmune.org

International Patient Organization for Primary Immunodeficiencies

Firside Main Road
Cornwall, PL11 3LE
United Kingdom
Tel: 441503250668
Fax: 441503250961
Email: info@ipopi.org
Website: http://www.ipopi.org/

Jeffrey Modell Foundation

780 Third Avenue
New York, NY 10017
Tel: (212)819-0200
Fax: (212)764-4180
Tel: (866)469-6474
Email: info@jmfworld.org
Website: http://www.info4pi.org

March of Dimes Birth Defects Foundation

1275 Mamaroneck Avenue
White Plains, NY 10605
Tel: (914)997-4488
Fax: (914)997-4763
Website: http://www.marchofdimes.com

NIH/National Heart, Lung and Blood Institute ~ Hematology Branch

10 Center Dr, Building 10-CRC
3-5140, MSC-1202
Bethesda, MD 20892-1202
Tel: (301)496-5093
Fax: (301)496-8396
Tel: (800)644-2337
Email: YoungNS@mail.nih.gov
Website: http://dir.nhlbi.nih.gov/labs/hb/index.asp

NIH/National Institute of Allergy and Infectious Diseases

NIAID Office of Communications and Government Relations
5601 Fishers Lane, MSC 9806
Bethesda, MD 20892-9806
Tel: (301)496-5717
Fax: (301)402-3573
Tel: (866)284-4107
Email: ocpostoffice@niaid.nih.gov
Website: http://www.niaid.nih.gov/

National Bone Marrow Transplant Link

20411 W. 12 Mile Rd
Suite 108
Southfield, MI 48076
Tel: (248)358-1886
Fax: (248)358-1889
Tel: (800)546-5268
Email: info@nbmtlink.org
Website: http://www.nbmtlink.org

National Cancer Institute

6116 Executive Blvd Suite 300
Bethesda, MD 20892-8322
Tel: (301)435-3848
Tel: (800)422-6237
Email: cancergovstaff@mail.nih.gov
Website: http://www.cancer.gov

OncoLink: The University of Pennsylvania Cancer Center Resource

3400 Spruce Street
2 Donner
Philadelphia, PA 19104-4283
Tel: (215)349-8895
Fax: (215)349-5445
Email: hampshire@uphs.upenn.edu
Website: http://www.oncolink.upenn.edu

XLP Research Trust

60 Winchester Road
Hampshire, SO51 8JA
United Kingdom
Tel: 4401794521077
Email: info@xlpresearchtrust.org
Website: http://www.xlpresearchtrust.org

For a Complete Report

This is an abstract of a report from the National Organization for Rare Disorders (NORD). A copy of the complete report can be downloaded free from the NORD website for registered users. The complete report contains additional information including symptoms, causes, affected population, related disorders, standard and investigational therapies (if available), and references from medical literature. For a full-text version of this topic, go to www.rarediseases.org and click on Rare Disease Database under "Rare Disease Information".

The information provided in this report is not intended for diagnostic purposes. It is provided for informational purposes only. NORD recommends that affected individuals seek the advice or counsel of their own personal physicians.

It is possible that the title of this topic is not the name you selected. Please check the Synonyms listing to find the alternate name(s) and Disorder Subdivision(s) covered by this report

This disease entry is based upon medical information available through the date at the end of the topic. Since NORD's resources are limited, it is not possible to keep every entry in the Rare Disease Database completely current and accurate. Please check with the agencies listed in the Resources section for the most current information about this disorder.

For additional information and assistance about rare disorders, please contact the National Organization for Rare Disorders at P.O. Box 1968, Danbury, CT 06813-1968; phone (203) 744-0100; web site www.rarediseases.org or email orphan@rarediseases.org

Last Updated:  12/13/1969
Copyright  2007 National Organization for Rare Disorders, Inc.