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GTR Home > Conditions/Phenotypes > De Lange syndrome

Summary

Excerpted from the GeneReview: Cornelia de Lange Syndrome
Cornelia de Lange syndrome (CdLS) encompasses a spectrum of findings from mild to severe. Severe (classic) CdLS is characterized by distinctive facial features, growth restriction (prenatal onset; <5th centile throughout life), hypertrichosis, and upper-limb reduction defects that range from subtle phalangeal abnormalities to oligodactyly (missing digits). Craniofacial features include synophrys, highly arched and/or thick eyebrows, long eyelashes, short nasal bridge with anteverted nares, small widely spaced teeth, and microcephaly. Individuals with a milder phenotype have less severe growth, cognitive, and limb involvement, but often have facial features consistent with CdLS. Across the CdLS spectrum IQ ranges from below 30 to 102 (mean: 53). Many individuals demonstrate autistic and self-destructive tendencies. Other frequent findings include cardiac septal defects, gastrointestinal dysfunction, hearing loss, myopia, and cryptorchidism or hypoplastic genitalia.

Genes See tests for all associated and related genes

  • Also known as: CAP, CDLS6, FSHRG4, HUNK1, HUNKI, MCAP, BRD4
    Summary: bromodomain containing 4

  • Also known as: CDA07, CDLS5, HD8, HDACL1, KDAC8, MRXS6, RPD3, WTS, HDAC8
    Summary: histone deacetylase 8

  • Also known as: CDLS4, HR21, HRAD21, MCD1, MGS, NXP1, SCC1, hHR21, RAD21
    Summary: RAD21 cohesin complex component

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