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Genetic and Rare Diseases Information Center (GARD)

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17q23.1q23.2 microdeletion syndrome

Other Names for this Disease
  • 17q23.1-q23.2 microdeletion syndrome
  • Chromosome 17q23.1-q23.2 deletion syndrome
  • Del(17)(q23.1q23.2)
  • Monosomy 17q23.1-q23.2
  • Monosomy 17q23.1q23.2
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What are the signs and symptoms of 17q23.1q23.2 microdeletion syndrome?

17q23.1q23.2 microdeletion syndrome is characterized by developmental delay, microcephaly, short stature, heart defects and hand, foot and limb abnormalities.[1][2] All individuals reported to date have had mild to moderate developmental delay, in particular delays in speech. Most have had heart defects, including patent ductus arteriosus or atrial septal defects. Limb abnormalities include long, thin fingers and toes, and hypoplasia (underdevelopment) of the patellae (knee caps). Scoliosis may also be present. Many patients have also had mild and unspecific unusual facial features.[1]
Last updated: 1/3/2013

  1. Morichon-Delvallez N. 17q23.1q23.2 microdeletion syndrome. Orphanet. 2011; Accessed 1/2/2013.
  2. Ballif et al. Identification of a recurrent microdeletion at 17q23.1q23.2 flanked by segmental duplications associated with heart defects and limb abnormalities. Am J Hum Genet. 2010 Mar 12;86(3):454-61. .