Neurofibromatosis Type 2 (NF2)

National Organization for Rare Disorders, Inc.

Important
It is possible that the main title of the report Neurofibromatosis Type 2 (NF2) 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.

Synonyms

  • Bilateral Acoustic Neurofibromatosis
  • Central Form, Neurofibromatosis
  • Vestibular Schwannoma Neurofibromatosis
  • NF2

Disorder Subdivisions

  • None

General Discussion

Neurofibromatosis type 2 (NF2) is a rare genetic disorder that is primarily characterized by benign (noncancerous) tumors of the nerves that transmit sound impulses from the inner ears to the brain (bilateral acoustic neuromas vestibular schwannomas). Associated symptoms and findings may become evident during childhood, adolescence, or early adulthood. Depending on the exact location and size of the acoustic neuromas/vestibular schwannomas, such findings may include disturbances of balance and walking (gait); dizziness; headache; facial weakness, numbness, or pain; ringing in the ears (tinnitus); and/or progressive hearing loss.

In some individuals with NF2, additional abnormalities may also be present. These may include loss of transparency of the lenses of the eyes (juvenile posterior subcapsular opacities), progressive visual impairment, or an increased risk of developing certain tumors of the brain and spinal cord (central nervous system).

NF2 results from changes (mutations) of a gene on the long arm (q) of chromosome 22 (22q12.2). The NF2 gene regulates the production of a protein that functions as a tumor suppressor. In some individuals with NF2, the disorder is caused by new (sporadic) mutations of the gene that occur for unknown reasons. In other affected individuals, NF2 is inherited as an autosomal dominant trait.

The term "neurofibromatosis" is sometimes also used to describe a second, distinct form of NF known as neurofibromatosis type I (NF1). More common than NF2, NF1 is primarily characterized by the development of multiple noncancerous (benign) tumors of nerves and skin (neurofibromas) and areas of abnormally decreased or increased coloration (hypo- or hyperpigmentation) of the skin, such as pale tan or light brown discolorations (cafe-au-lait spots) on the skin of the trunk or other regions. In contrast, in individuals with NF2, benign fibrous tumors of the skin (cutaneous neurofibromas) and areas of abnormal pigmentation are considered relatively rare. As with NF2, NF1 may be inherited as an autosomal dominant trait or appear to occur randomly due to new (sporadic) genetic changes.
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Resources

Children's Tumor Foundation: Ending Neurofibromatosis Through Research
95 Pine Street
16th Floor
New York, NY 10005
Tel: (212)344-6633
Fax: (212)747-0004
Tel: (800)323-7938
TDD: (212)344-6633
Email: info@ctf.org
Internet: http://www.nf.org

Neurofibromatosis, Inc.
P.O. Box 66884
Chicago, IL 60666
USA
Tel: (630)627-1115
Fax: (630)627-1117
Tel: (800)942-6825
Email: kbischoff@nfinc.org
Internet: http://www.nfinc.org

Better Hearing Institute
515 King Street, Suite 420
Suite 420
Alexandria, VA 22314
United States
Tel: (703)684-3391
Fax: (703)684-6048
Tel: (800)327-9355
Email: mail@betterhearing.org
Internet: http://www.betterhearing.org

National Association of the Deaf
8630 Fenton Street, Suite 820
Silver Spring, MD 20910
USA
Tel: (301)587-1788
Fax: (301)587-1791
TDD: (301)587-1789
Email: NADinfo@nad.org
Internet: http://www.nad.org

Cedars-Sinai Medical Genetics-Birth Defects Center
Medical Genetics
444 S. San Vincente Blvd
Suite 1001
Los Angeles, CA 90048
USA
Tel: (310)423-9914
Fax: (310)423-9939
Internet: http://www.cedars-sinai.edu/genetics

Children's National Medical Center
111 Michigan Ave. NW
Washington, DC 20010
Tel: (202)476-2327
Tel: (888)884-2327
Email: tbear@cnmc.org
Internet: http://www.childrensnational.org/

NIH/National Institute on Deafness and Other Communication Disorders (Balance)
National Temporal Bone, Hearing
and Balance Pathology Resource Registry
Massachusetts Eye & Ear Infirmary
243 Charles Street
Boston, MA 02114-3096
Fax: (617)573-3838
Tel: (800)822-1327
TDD: (888)561-3277
Email: TBRegistry@meei.harvard.edu
Internet: http://www.tbregistry.org

National Institute of Neurological Disorders and Stroke (NINDS)
P.O. Box 5801
Bethesda, MD 20824
Tel: (301)496-5751
Fax: (301)402-2186
Tel: (800)352-9424
TDD: (301)468-5981
Email: me20t@nih.gov
Internet: http://www.ninds.nih.gov/

Massachusetts General Hospital Neurofibromatosis Clinic
55 Fruit Street
Gray 502
Boston, MA 02114
USA
Tel: (617)724-7856
Fax: (617)724-8769
Email: SPlotkin@partners.org
Internet: http://neurosurgery.mgh.harvard.edu/NFclinic/

NF-2 Sharing Network
Paul Mendelsohn
10074 Cabachon Court
Ellicott City, MD 21041-2330
Tel: (410)461-2245
Fax: (410)461-2245
TDD: (410)461-5213

University of Chicago Neurofibromatosis Clinic
5839 South Maryland Avenue
MC 3055
Chicago, IL 60637
USA
Tel: (773)203-2344
Fax: (773)702-4786
Email: tonsgard@midway.uchicago.edu

Acoustic Neuroma Association of Canada
171A Rink Street, Suite 163
Peterborough
Ontario, K9J 2J6
Canada
Tel: 7804283384
Fax: 7804283909
Tel: 8005612622
Email: info@anac.ca
Internet: http://www.anac.ca

BC Neurofibromatosis Foundation
203-1001 Cloverdale
Victoria, BC, Intl V8X 4C9
Canada
Tel: 205-370-7597
Fax: 205-370-7598
Tel: 800-385-BCNF (2263)
TDD: 999-999-9999
Email: bcnf@bcnf.bc.ca
Internet: http://www.bcnf.bc.ca

Rare Cancer Alliance
1649 North Pacana Way
Green Valley, AZ 85614
USA
Tel: (520)625-5495
Fax: (615)526-4921
Email: sharon.lane@rare-cancer.org
Internet: http://www.rare-cancer.org

Sjældne Diagnoser / Rare Disorders Denmark
Frederiksholms Kanal 2, 3rd Floor
Copenhagen K, 1220
Denmark
Tel: 45 33 14 00 10
Fax: 45 33 14 55 09
Email: mail@sjaeldnediagnoser
Internet: http://www.raredisorders.dk

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
TDD: (888)205-3223
Email: ordr@od.nih.gov
Internet: http://rarediseases.info.nih.gov/Default.aspx

Madisons Foundation
PO Box 241956
Los Angeles, CA 90024
Tel: (310)264-0826
Fax: (310)264-4766
Email: getinfo@madisonsfoundation.org
Internet: http://www.madisonsfoundation.org

Let Them Hear Foundation
1900 University Avenue, Suite 101
East Palo Alto, CA 94303
Tel: (650)462-3143
Fax: (650)462-3144
Tel: (877)735-2929
Email: info@letthemhear.org
Internet: http://www.letthemhear.org

Alberta Neurofibromatosis Association
636 Hunterfield Place NW
Rocky Mountain House
Calgary, Alberta
T2K 4L6
Canada
Tel: 403-722-3389
Tel: 866-939-2263
Email: pam@albertanf.org or cathy@albertanf.org
Internet: http://www.albertanf.org

American Academy of Audiology
11730 Plaza America Drive, Suite 300
Reston, VA 20190
Tel: (703)790-8466
Fax: (703)790-8631
Tel: (800)222-2336
Email: infoaud@audiology.org
Internet: http://www.audiology.org

American Association of Neurological Surgeons
5550 Meadowbrook Drive
Rolling Meadows, IL 60008-3852
Tel: (847)378-0500
Fax: (847)378-0600
Tel: (888)566-2267
Email: info@aans.org
Internet: http://www.NeurosurgeryToday.org and http://www.aans.org

Cancer.Net
American Society of Clinical Oncology
2318 Mill Road
Suite 800
Alexandria, VA 22314
Tel: (571)483-1780
Fax: (571)366-9537
Tel: (888)651-3038
Email: contactus@cancer.net
Internet: http://www.cancer.net/patient

Hearing Loss Association of America
7910 Woodmont Avenue
Suite 1200
Bethesda, MD 20814
Tel: (301)657-2248
Fax: (301)913-9413
Email: info@hearingloss.org
Internet: http://www.hearingloss.org

For a Complete Report

For a Complete Report

This is an abstract of a report from the National Organization for Rare Disorders, Inc. ® (NORD). A copy of the complete report can be obtained for a small fee by visiting the NORD website. The complete report contains additional information including symptoms, causes, affected population, related disorders, standard and investigational treatments (if available), and references from medical literature. For a full-text version of this topic, see http://www.rarediseases.org/search/rdblist.html

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