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Copyright 1996, 2001, 2003
Synonyms of Chromosome 9, Trisomy Mosaic
- Trisomy 9 (Complete Trisomy 9 Syndrome), Included
- Trisomy 9 Mosaic
- Trisomy 9 Mosaicism
- Trisomy 9 Mosaicism Syndrome
Disorder Subdivisions
General Discussion
Chromosome 9, Trisomy Mosaic, also known as Trisomy 9 Mosaicism syndrome, is a rare chromosomal disorder in which the entire 9th chromosome appears three times (trisomy) rather than twice in some cells of the body. The term "mosaic" indicates that some cells contain the extra chromosome 9, while others have the normal chromosomal pair.
Associated symptoms and findings may vary greatly in range and severity, depending on the percentage of cells with the extra chromosome. However, common features include growth deficiency before birth (intrauterine growth retardation); mental retardation; structural malformations of the heart that are present at birth (congenital heart defects); and/or distinctive abnormalities of the skull and facial (craniofacial) region, such as a sloping forehead, a bulbous nose, short eyelid folds (palpebral fissures), deeply set eyes, and/or low-set, malformed ears. The syndrome may also be characterized by musculoskeletal, genital, kidney (renal), and/or additional physical abnormalities. Chromosome 9, Trisomy Mosaic may be caused by errors during the division of a parent's reproductive cells (meiosis) or during the division of body tissue cells (somatic cells) early in the development of the embryo (mitosis).
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Organizations related to Chromosome 9, Trisomy Mosaic
- AmeriFace
PO Box 751112
Las Vegas NV 89136
Phone #: 702-769-9264
800 #: 888-486-1209
e-mail: info@ameriface.org
Home page: http://www.ameriface.org
- American Heart Association
7272 Greenville Avenue
Dallas TX 75231-4596
Phone #: 214-373-6300
800 #: 800-242-8721
e-mail: Review.personal.info@heart.org
Home page: http://www.americanheart.org
- Arc
1660 L Street, NW, Suite 301
Washington DC 20036
Phone #: 202-534-3700
800 #: 800-433-5255
e-mail: info@thearc.org
Home page: http://www.thearc.org
- Craniofacial Foundation of America
975 East Third Street
Chattanooga TN 37403
Phone #: 423-778-9176
800 #: 800-418-3223
e-mail: terry.smyth@erlanger.org
Home page: http://www.craniofacialfoundation.org
- Genetic and Rare Diseases (GARD) Information Center
PO Box 8126
Gaithersburg MD 20898-8126
Phone #: 301-251-4925
800 #: 888-205-2311
e-mail: http://rarediseases.info.nih.gov/GARD/EmailForm.aspx
Home page: http://rarediseases.info.nih.gov/GARD
- March of Dimes Birth Defects Foundation
1275 Mamaroneck Avenue
White Plains NY 10605
Phone #: 914-997-4488
800 #: 888-663-4637
e-mail: Askus@marchofdimes.com
Home page: http://www.marchofdimes.com
- SOFTWA (Support Organisation for Trisomy and Related Disorders)
None
None None None
Phone #: N/A
800 #: N/A
e-mail: softwa@arach.net.au
Home page: http://www.trisomy9.org
- Support Organization for Trisomy 13/18 and Related Disorders, UK
c/o Christine Rose
48 Froggatts Ride
Walmley
Sutton Coldfield
West Midlands Intl B76 2TQ SOFT
Phone #: 012-1-3-51-3122
800 #: --
e-mail: enquiries@soft.org.uk
Home page: http://www.soft.org.uk
- Support Organization for Trisomy 18, 13, and Related Disorders
2982 South Union Street
Rochester NY 14624-1926
Phone #: N/A
800 #: 800-716-7638
e-mail: barbv@trisomy.org
Home page: http://www.trisomy.org
- Trisomy 9 International Parent Support (9TIPS)
Alice Todd
4027 E. Piedmont Drive
Highland CA 92346
Phone #: 909-862-4470
800 #: --
e-mail: atoddna@sprynet.com
Home page: N/A
- UNIQUE - Rare Chromosome Disorder Support Group
P.O. Box 2189
Caterham
Surrey Intl CR3 5GN
Phone #: 44 -0 1-883 330766
800 #: --
e-mail: info@rarechromo.org
Home page: http://www.rarechromo.org
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