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Diseases

Genetic and Rare Diseases Information Center (GARD)

Isodicentric chromosome 15 syndrome


Other Names for this Disease
  • Duplication/inversion 15q11
  • Inv dup(15)
  • Non-distal tetrasomy 15q
  • Non-telomeric tetrasomy 15q
  • Idic(15)
Related Diseases
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Overview

Isodicentric chromosome 15 syndrome is a chromosome abnormality that affects many different parts of the body. As the name suggests, people with this condition have an extra chromosome (called an isodicentric chromosome 15) which is made of two pieces of chromosome 15 that are stuck together end-to-end. Although the severity of the condition and the associated features vary from person to person, common signs and symptoms include poor muscle tone in newborns; developmental delay; mild to severe intellectual disability; delayed or absent speech; behavioral abnormalities; and seizures.[1][2] Most cases of isodicentric chromosome 15 syndrome occur sporadically in people with no family history of the condition.[3][1] Treatment is based on the signs and symptoms present in each person.[1]
Last updated: 1/21/2016

References

  1. Idic(15). Unique. 2014; http://www.rarechromo.org/information/Chromosome%2015/Idic%2815%29%20FTNW.pdf.
  2. Rim JH, Chung HJ, Shin S, Park SJ, Choi JR. Isodicentric Chromosome 15 Syndrome in a Korean Patient With Café-au-lait Spots. Ann Lab Med. July 2015; 35(4):474-476.
  3. Isodicentric chromosome 15 syndrome. Genetics Home Reference. September 2012; http://ghr.nlm.nih.gov/condition/isodicentric-chromosome-15-syndrome.
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Basic Information

  • Genetics Home Reference (GHR) contains information on Isodicentric chromosome 15 syndrome. This website is maintained by the National Library of Medicine.
  • Unique is a source of information and support for families and individuals affected by rare chromosome disorders. Click on the link to view information about Isodicentric chromosome 15 syndrome.

In Depth Information

  • Orphanet is a European reference portal for information on rare diseases and orphan drugs. Access to this database is free of charge.
  • PubMed is a searchable database of medical literature and lists journal articles that discuss Isodicentric chromosome 15 syndrome. Click on the link to view a sample search on this topic.
Other Names for this Disease
  • Duplication/inversion 15q11
  • Inv dup(15)
  • Non-distal tetrasomy 15q
  • Non-telomeric tetrasomy 15q
  • Idic(15)
Related Diseases
See Disclaimer regarding information on this site. Some links on this page may take you to organizations outside of the National Institutes of Health.