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Ring chromosome 2 syndrome

Disease definition

Ring chromosome 2 syndrome is a rare chromosomal anomaly syndrome with highly variable phenotype principally characterized by intrauterine growth retardation, failure to thrive, developmental delay, hypotonia, mild dysmorphic features (incl. microcephaly, short forehead, upslanting palpebral fissures, hypertelorism, epicanthal folds, wide nasal bridge, broad nasal tip, long philtrum, thin upper lip, micrognathia, short neck), skeletal anomalies (e.g. kyphosis, brachydactyly, clinodactyly, talipes equinovarus) and dermatological features (i.e. café-au-lait spots). Patients may also present ventriculoseptal defects and genital abnormalities (e.g. genital hypoplasia, phimosis, cryptorchidism).


Classification level: Disorder
  • Synonym(s):
    • Ring 2
    • Ring chromosome 2
  • Prevalence: <1 / 1 000 000
  • Inheritance: -
  • Age of onset: -
  • ICD-10: Q93.2
  • OMIM: -
  • UMLS: C4707448
  • MeSH: -
  • GARD: 10837
  • MedDRA: -

Detailed information

General public

ERN produced/endorsed by ERN(s)   FSMR produced/endorsed by FSMR(s)
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