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Chromosome 18q- Syndrome

National Organization for Rare Disorders, Inc.

Important
It is possible that the main title of the report Chromosome 18q- 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.

Synonyms

  • 18q- Syndrome
  • Chromosome 18 Long Arm Deletion Syndrome
  • Chromosome 18, Monosomy 18Q
  • Monosomy 18q Syndrome
  • Del(18q) Syndrome
  • 18q Deletion Syndrome

Disorder Subdivisions

  • None

General Discussion

Chromosome 18q- syndrome (also known as Chromosome 18, Monosomy 18q) is a rare chromosomal disorder in which there is deletion of part of the long arm (q) of chromosome 18. Associated symptoms and findings may vary greatly in range and severity from case to case. However, characteristic features include short stature; mental retardation; poor muscle tone (hypotonia); malformations of the hands and feet; and abnormalities of the skull and facial (craniofacial) region, such as a small head (microcephaly), a "carp-shaped" mouth, deeply set eyes, prominent ears, and/or unusually flat, underdeveloped midfacial regions (midfacial hypoplasia). Some affected individuals may also have visual abnormalities, hearing impairment, genital malformations, structural heart defects, and/or other physical abnormalities. Chromosome 18q- syndrome usually appears to result from spontaneous (de novo) errors very early during embryonic development that occur for unknown reasons (sporadically).

Resources

Children's Craniofacial Association
13140 Coit Road
Suite 517
Dallas, TX 75240
USA
Tel: (214)570-9099
Fax: (214)570-8811
Tel: (800)535-3643
Email: contactCCA@ccakids.com
Internet: http://www.ccakids.com

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

Lighthouse International
111 E 59th St
New York, NY 10022-1202
Tel: (800)829-0500
Email: info@lighthouse.org
Internet: http://www.lighthouse.org

The Arc
1825 K Street NW, Suite 1200
Washington, DC 20006
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

AmeriFace
P.O. Box 751112
Limekiln, PA 19535
USA
Tel: (702)769-9264
Fax: (702)341-5351
Tel: (888)486-1209
Email: info@ameriface.org
Internet: http://www.ameriface.org

National Association for Parents of Children with Visual Impairments (NAPVI)
P.O. Box 317
Watertown, MA 02272-0317
Tel: (617)972-7441
Fax: (617)972-7444
Tel: (800)562-6265
Email: napvi@perkins.org
Internet: http://www.napvi.org

Alexander Graham Bell Association for the Deaf and Hard of Hearing
3417 Volta Place NW
Washington, DC 20007-2778
United States
Tel: (202)337-5220
Fax: (202)337-8314
Tel: (866)337-5220
TDD: (202)337-5221
Email: info@agbell.org
Internet: http://www.agbell.org

Chromosome Disorder Outreach, Inc.
P.O. Box 724
Boca Raton, FL 33429-0724
USA
Tel: (561)395-4252
Fax: (561)395-4252
Email: info@chromodisorder.org
Internet: http://www.chromodisorder.org/CDO/

Chromosome 18 Registry & Research Society
7155 Oakridge Drive
San Antonio, TX 78229
Tel: (210)657-4968
Fax: (210)657-4968
Email: office@chromosome18.org
Internet: http://www.chromosome18.org

American Heart Association
7272 Greenville Avenue
Dallas, TX 75231
Tel: (214)784-7212
Fax: (214)784-1307
Tel: (800)242-8721
Email: Review.personal.info@heart.org
Internet: http://www.heart.org

NIH/National Eye Institute
31 Center Dr
MSC 2510
Bethesda, MD 20892-2510
United States
Tel: (301)496-5248
Fax: (301)402-1065
Email: 2020@nei.nih.gov
Internet: http://www.nei.nih.gov/

NIH/National Institute on Deafness and Other Communication Disorders
31 Center Drive, MSC 2320
Communication Avenue
Bethesda, MD 20892-3456
Tel: (301)402-0900
Fax: (301)907-8830
Tel: (800)241-1044
TDD: (800)241-1105
Email: nidcdinfo@nidcd.nih.gov
Internet: http://www.nidcd.nih.gov

UNIQUE - Rare Chromosome Disorder Support Group
P.O. Box 2189
Caterham
Surrey, CR3 5GN
United Kingdom
Tel: 4401883330766
Fax: 4401883330766
Email: info@rarechromo.org
Internet: http://www.rarechromo.org

Craniofacial Foundation of America
975 East Third Street
Chattanooga, TN 37403
Tel: (423)778-9176
Fax: (423)778-8172
Tel: (800)418-3223
Email: terry.smyth@erlanger.org
Internet: http://www.craniofacialfoundation.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
TDD: (888)205-3223
Internet: http://rarediseases.info.nih.gov/GARD/

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:  4/10/2009
Copyright  1993, 2001, 2009 National Organization for Rare Disorders, Inc.

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