Familial Mediterranean Fever

National Organization for Rare Disorders, Inc.

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Important
It is possible that the main title of the report Familial Mediterranean Fever is not the name you expected.

Disorder Subdivisions

  • None

General Discussion

Summary
Familial Mediterranean fever (FMF) is an inherited autoinflammatory disease characterized by recurrent episodes (attacks) of fever and acute inflammation of the membranes lining the abdomen, joints, and lungs. In some cases, affected individuals may develop skin rashes (erysipelas like erythema) affecting the lower legs. Less often, inflammation of the membrane lining the heart or covering the brain and spinal cord may occur. Some individuals may develop a serious condition known as amyloidosis, in which certain proteins called amyloid accumulates in various tissues of the body. In FMF, amyloid accumulates in the kidneys (renal amyloidosis) where it can impair kidney function potentially result in life-threatening complications such as kidney failure. The specific symptoms and severity of FMF are highly variable. Some individuals develop amyloidosis, but none of the other symptoms associated with FMF. These cases are sometimes referred to as FMF type 2. FMF is caused by mutations of the pyrin (MEFV) gene and is inherited as an autosomal recessive trait.

Introduction
FMF is classified as an autoinflammatory syndrome. Autoinflammatory syndromes are a group of disorders characterized by recurrent episodes of inflammation due to an abnormality of the innate immune system. They are not the same as autoimmune syndromes, in which the adaptive immune system malfunctions and mistakenly attacks healthy tissue. FMF is the most common autoinflammatory syndrome. It is also classified as a hereditary periodic fever syndrome.

Supporting Organizations

Autoinflammatory Alliance

P.O. Box 590354
San Francisco, CA 94118
Tel: (415)831-8782
Email: karen@autoinflammatory.org
Website: http://autoinflammatory.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/

International Society for Systemic Auto-Inflammatory Diseases

Website: http://fmf.igh.cnrs.fr/ISSAID/

March of Dimes

1275 Mamaroneck Avenue
White Plains, NY 10605
Tel: (914)997-4488
Fax: (914)997-4763
Email: AskUs@marchofdimes.org or preguntas@nacersano.org
Website: http://www.marchofdimes.org and nacersano.org

NIH/National Institute of Arthritis and Musculoskeletal and Skin Diseases

Information Clearinghouse
One AMS Circle
Bethesda, MD 20892-3675
USA
Tel: (301)495-4484
Fax: (301)718-6366
Tel: (877)226-4267
Email: NIAMSinfo@mail.nih.gov
Website: http://www.niams.nih.gov/

For a Complete Report

This is an abstract of a report from the National Organization for Rare Disorders (NORD). For a full-text version of this report, 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.

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.

Last Updated:  7/14/2015
Copyright  2015 National Organization for Rare Disorders, Inc.