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Genetic and Rare Diseases Information Center (GARD)


Other names people use for this condition
  • Schmid-Fraccaro syndrome
  • CES
  • Chromosome 22 partial tetrasomy
  • INV DUP(22)(Q11)



Cat Eye syndrome
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Cat Eye syndrome is a rare condition with widely variable features including structural defects of the iris of the eye (coloboma), skin tags near the ear, narrowing or closure of the anus (atresia), defects of the heart or kidneys, and intellectual disability.  It occurs when an individual inherits extra genetic material from chromosome 22, known as a marker chromosome, from a parent.  The marker chromosome generally arises by chance in the parent, though inheritance from an affected parent directly to a child has been observed.  The diagnosis of Cat Eye syndrome depends on finding a marker chromosome by genetic testing.[1]


References
  1. Cat Eye Syndrome. OMIM. 2009 Available at: http://www.ncbi.nlm.nih.gov/omim/115470. Accessed February 27, 2010.
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