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Nance-Horan syndrome

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A congenital syndrome affecting both sexes characterized by cataracts, impaired vision, supernumerary central incisor (mesiodens), incisor diastemas, narrowed incisal edges, anteverted pinnae and short fourth metacarpals. In some patients, developmental delay, and mental retardation. It is transmitted as an X-linked trait.

We thank Andre Trombeta for information submitted.


  • F. B. Walsh, M. E. Wegman:
    Pedigree of hereditary cataract, illustrating sex-limited type.
    Bulletin of the Johns Hopkins Hospital, Baltimore, 1937, 61: 125-135.
  • M. F. Goldberg, J. E. Hardy:
    X-linked cataract: Two pedigrees.
    Birth Defects Original Article Series, New York, 1971, 7 (3):164-165
  • M. B. Horan, F. A. Billson:
    X-linked cataract and hutchinsonian teeth.
    Australian Paediatric Journal, 1974, 10: 98-102.
  • W. E. Nance, Mette Warburg, David Bixler, E. M. Helveston:
    Congenital X-linked cataract, dental anomalies, and brachymetacarpalia.
    Birth Defects Original Article Series, New York, Ser X, 1974, 10 (4): 285-291.
  • David Bixler, M. Higgins, J. Hartsfield:
    The Nance-Horan syndrome: A rare X-linked oculodental trait with expression in heterozygous families.
    Clinical Genetics, Copenhagen, 1984, 26: 30-35.
  • R. Walpole, A. Hockey, A. Nicoll:
    The Nance-Horan syndrome.
    Journal of Medical Genetics, London, October 1990, 27 (10):632-634.

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