Tuberous Sclerosis
National Organization for Rare Disorders, Inc.
Synonyms
- Bourneville Pringle Syndrome
- Epiloia
- Phakomatosis TS
- TSC1
- TSC2
- Tuberose Sclerosis
- Tuberous Sclerosis Complex
- Tuberous Sclerosis-1
General Discussion
Tuberous sclerosis is a rare genetic multisystem disorder that is typically apparent shortly after birth. The disorder may be characterized by episodes of uncontrolled electrical activity in the brain (seizures); mental retardation; distinctive skin abnormalities (lesions); and benign (noncancerous), tumor-like nodules (hamartomas) of the brain, certain regions of the eyes (e.g., retinas), the heart, the kidneys, the lungs, or other tissues or organs. In addition, many affected individuals may have cyst-like areas within certain skeletal regions, particularly bones of the fingers and toes (phalanges). Characteristic skin lesions include sharply defined areas of decreased skin coloration (hypopigmentation) that may develop during infancy and relatively small reddish nodules that may appear on the cheeks and nose beginning at approximately age four. These reddish lesions eventually enlarge, blend together (coalesce), and develop a wart-like appearance (sebaceous adenomas). Additional skin lesions may also develop, including flat, "coffee-colored" areas of increased skin pigmentation (cafe-au-lait spots); benign, fibrous nodules (fibromas) arising around or beneath the nails; or rough, elevated, "knobby" lesions (shagreen patches) on the lower back.
Tuberous sclerosis results from changes (mutations) in a gene or genes that may occur spontaneously (sporadically) for unknown reasons or be inherited as an autosomal dominant trait. Most cases represent new (sporadic) gene mutations, with no family history of the disease. Mutations of at least two different genes are known to cause tuberous sclerosis. One gene (TSC1) has been mapped to the long arm (q) of chromosome 9 (9q34). A second gene for the disease (TSC2) is located on the short arm (p) of chromosome 16 (16p13.3). It remains unclear whether some sporadic and familial cases of the disease may be caused by mutations of other, currently unidentified genes (genetic heterogeneity).
Resources
Tuberous Sclerosis Alliance
801 Roeder Road
Suite 750
Silver Spring, MD 20910
US
Tel: 3015629890
Fax: 3015629870
Tel: 8002256872
Email: info@tsalliance.org
Internet: http://www.tsalliance.org
March of Dimes Birth Defects Foundation
1275 Mamaroneck Avenue
White Plains, NY 10605
Tel: (914)997-4488
Fax: (914)997-4763
Tel: (888)663-4637
Email: Askus@marchofdimes.com
Internet: http://www.marchofdimes.com
The Arc
1660 L Street, NW, Suite 301
Washington, DC 20036
Tel: (202)534-3700
Fax: (202)534-3731
Tel: (800)433-5255
TDD: (817)277-0553
Email: info@thearc.org
Internet: http://www.thearc.org
Epilepsy Foundation
8301 Professional Place
Landover, MD 20785
Tel: (301)459-3700
Fax: (301)577-2684
Tel: (800)332-1000
TDD: (800)332-2070
Email: info@efa.org
Internet: http://www.epilepsyfoundation.org
NIH/National Institute of Neurological Disorders and Stroke
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/
Tuberous Sclerosis Association
PO Box 13938
Birmingham, Intl B45 5BF
United Kingdom
Tel: +44 (0)121 445 6970
Email: development-support@tuberous-sclerosis.org
Internet: http://www.tuberous-sclerosis.org
Children's Brain Tumor Foundation
274 Madison Avenue, Suite 1004
New York, NY 10016
United States
Tel: (212)448-1595
Fax: (212)448-1022
Tel: (866)228-4673
Email: info@cbtf.org
Internet: http://www.cbtf.org
Brain Tumor Foundation for Children, Inc.
6065 Roswell Road Suite 505
Atlanta, GA 30328-4015
USA
Tel: (404)252-4107
Fax: (404)252-4108
Email: info@braintumorkids.org
Internet: http://www.braintumorkids.org
Tuberous Sclerosis Canada Sclerose Tubereuse
508 12th Street
Dunmore
Alberta, Intl T1B 0K4
Canada
Tel: 888-223-2410
Email: raymarco@shaw.ca
Internet: http://www.tscanada.ca
Rare Cancer Alliance
1649 North Pacana Way
Green Valley, AZ 85614
USA
Tel: (520)625-5495
Fax: (615)526-4921
Internet: http://www.rare-cancer.org
Rothberg Institute For Childhood Diseases
530 Whitfield Street
Guilford, CT 06437
USA
Tel: (203)458-7100
Fax: (203)458-2514
Email: info@childhooddiseases.org
Internet: http://www.childhooddiseases.org
MUMS National Parent-to-Parent Network
150 Custer Court
Green Bay, WI 54301-1243
USA
Tel: (920)336-5333
Fax: (920)339-0995
Tel: (877)336-5333
Email: mums@netnet.net
Internet: http://www.netnet.net/mums/
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
Internet: http://rarediseases.info.nih.gov/GARD/
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
Pediatric Brain Tumor Foundation
302 Ridgefield Court
Asheville, NC 28806
Tel: (828)665-6891
Fax: (828)665-6894
Tel: (800)253-6530
Email: pbtfus@pbtfus.org
Internet: http://www.pbtfus.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
LAM Treatment Alliance, Inc.
64 Church Street
2nd floor
Cambridge, MA 02138
Tel: (617)460-7339
Fax: (617)864-0614
Email: info@lamtreatmentalliance.org
Internet: http://www.LAMTreatmentAlliance.org
Hemispherectomy Foundation
P.O. Box 1239
Aledo, TX 76008
Tel: (817)307-9880
Email: info@hemifoundation.org
Internet: http://www.hemifoundation.intuitwebsites.com/welcome.html
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: 2/24/2010
Copyright 1984, 1985, 1987, 1988, 1989, 1990, 1992, 1993, 1994, 1997, 1998, 1999, 2000, 2004, 2005 National Organization for Rare Disorders, Inc.