Chondrodysplasia-disorder of sex development syndrome

What is Chondrodysplasia-disorder of sex development syndrome?

A rare difference of sex development affecting 46,XY individuals and characterized by complete gonadal dysgenesis (normal external female genitalia, lack of pubertal development, primary amenorrhea, and hypergonadotrophic hypogonadism) in association with severe dwarfism with generalized chondrodysplasia (bell-shaped thorax, micromelia, brachydactyly). Other reported features in the live sibling included eye anomalies (hypoplastic irides, myopia, coloboma of optic discs), dysmorphic features (deep-set eyes, upslanting palpebral fissures, puffy eyelids, large ears and mouth, mild prognathism), muscular hypoplasia, mild intellectual deficiency and severe microcephaly with cerebellar vermis hypoplasia.

Other condition names

  • Nivelon-Nivelon-Mabille syndrome

Inheritance type

Autosomal recessive

Prevalence

  • Worldwide: <1 in 1,000 000

Age of Onset

  • Antenatal
  • Neonatal
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