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Genetic and Rare Diseases Information Center (GARD)

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Nance-Horan syndrome

Other Names for this Disease
  • Cataract dental syndrome
  • Cataract X-linked with Hutchinsonian teeth
  • Mesiodens cataract syndrome
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Your Questions Answered

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  • My nephew was diagnosed with Nance-Horan syndrome. He was born with cataracts, supernumerary teeth, and facial dysmorphism. He doesn't have intellectual disabilities. My sister is the carrier and she has some of the characteristics; but much less severe than her son. No other family members have features of the syndrome. Is it possible that the genetic defect started with her? And what are the chances of my sister having a child without the defect? Is it possible to be a carrier and not show any outward signs of the syndrome? Click here for answer