SNOMED CT, US Edition

Last uploaded: March 22, 2026
Id http://purl.bioontology.org/ontology/SNOMEDCT/720851007
http://purl.bioontology.org/ontology/SNOMEDCT/720851007
Preferred Name

Chondrodysplasia with disorder of sex development syndrome

Definitions
A rare disorder 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. A rare disorder of sex development affecting 46,XY individuals and characterised by complete gonadal dysgenesis (normal external female genitalia, lack of pubertal development, primary amenorrhoea, and hypergonadotrophic hypogonadism) in association with severe dwarfism with generalised 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. An extremely rare disorder of sex development, reported in only two siblings to date. The syndrome has clinical features of 46,XY complete gonadal dysgenesis in association with severe dwarfism with generalised chondrodysplasia (bell-shaped thorax, micromelia, brachydactyly). Other reported features in the live sibling included eye anomalies, dysmorphic features, muscular hypoplasia, mild intellectual deficiency and severe microcephaly with cerebellar vermis hypoplasia. An autosomal recessive inheritance has been suggested. An extremely rare disorder of sex development, reported in only two siblings to date. The syndrome has clinical features of 46,XY complete gonadal dysgenesis in association with severe dwarfism with generalized chondrodysplasia (bell-shaped thorax, micromelia, brachydactyly). Other reported features in the live sibling included eye anomalies, dysmorphic features, muscular hypoplasia, mild intellectual deficiency and severe microcephaly with cerebellar vermis hypoplasia. An autosomal recessive inheritance has been suggested.
Synonyms
Chondrodysplasia with disorder of sex development syndrome (disorder)
Chondrodysplasia pseudohermaphroditism syndrome
Nivelon Nivelon Mabille syndrome
Type http://www.w3.org/2002/07/owl#Class
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