X-linked intellectual disability, Seemanova type

What is X-linked intellectual disability, Seemanova type?

X-linked intellectual disability, Seemanova type is characterised by microcephaly, intellectual deficit, growth retardation and hypogenitalism. It has been described in four boys from one family. A characteristic facies and ophthalmologic anomalies were also present and included microphthalmia, microcornea and cataract. Transmission is X-linked.

Inheritance type

X-linked recessive

Prevalence

  • Worldwide: <1 in 1,000 000

Age of Onset

  • Infancy
  • Neonatal
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