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Chromosome 5, Trisomy 5p

Important
It is possible that the main title of the report Chromosome 5, Trisomy 5p 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

  • trisomy 5p
  • chromosome 5, trisomy 5p, complete (5p11-ter), included
  • chromosome 5, trisomy 5p, partial, included
  • dup(5p) syndrome
  • duplication 5p syndrome

Disorder Subdivisions

  • None

General Discussion

Trisomy 5p is a rare chromosomal disorder in which all or a portion of the short arm (p) of chromosome 5 (5p) appears three times (trisomy) rather than twice in cells of the body. Often the duplicated portion of 5p (trisomy) is due to a complex rearrangement involving other chromosomes. These individuals have a variable phenotype depending on which chromosome is involved, the size of the duplication and whether there is loss of material from the same or another chromosome. There are rare cases with an isolated duplication of 5p. These individuals have less variability. The variability that does appear is due to the size and location of the duplication. The individuals with only the duplication allow a better description of the symptoms (phenotype) and definition of a critical region for certain symptoms (cardiac abnormalities and seizures). Many affected infants and children have abnormalities that include low muscle tone (hypotonia); an unusually large head (macrocephaly) and additional abnormalities of the head and facial (craniofacial) area; long, slender fingers (arachnodactyly); delays in the acquisition of skills requiring the coordination of mental and physical activities (psychomotor retardation); and intellectual disability. Some affected individuals may have heart defects and seizures. Not all individuals with trisomy 5p will have all of the symptoms of the disorder.

Resources

Support Organization for Trisomy 18, 13, and Related Disorders
2982 S. Union Street
Rochester, NY 14624-1926
Fax: (585)594-1957
Tel: (800)716-7638
Email: barbv@trisomy.org
Internet: http://www.trisomy.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
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

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/

Support Organization for Trisomy 13/18 and Related Disorders, UK
c/o Christine Rose
48 Froggatts Ride
Walmley
Sutton Coldfield
West Midlands, B76 2TQ SOFT
United Kingdom
Tel: 01213513122
Email: enquiries@soft.org.uk
Internet: http://www.soft.org.uk

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

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:  3/19/2013
Copyright  1994, 2000, 2001, 2003, 2010, 2013 National Organization for Rare Disorders, Inc.

WebMD Medical Reference from the National Organization of Rare Disorders

Last Updated: September 04, 2014
This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.

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