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Ring chromosome 22 syndrome
Disease definition
A rare autosomal anomaly characterized by variable clinical features, most commonly including global developmental delay, hypotonia, growth retardation with microcephaly, intellectual disability with severe speech delay, seizures or abnormal EEG, autistic spectrum disorder and other behavioral characteristics.
ORPHA:1446
Classification level: Disorder- Synonym(s):
- Ring 22
- Ring chromosome 22
- r(22) syndrome
- Prevalence: <1 / 1 000 000
- Inheritance: -
- Age of onset: Infancy, Neonatal
- ICD-10: Q93.2
- OMIM: -
- UMLS: C0265492
- MeSH: C536795
- GARD: 1336
- MedDRA: -
A summary on this disease is available in Español (2018) Italiano (2018) Nederlands (2018) Polski ()
Detailed information
General public
- Article for general public
- Deutsch (2008, pdf) - Unique
- Français (2008, pdf) - Unique
- English (2014, pdf) - Unique
- Nederlands (2014, pdf) - Unique


Additional information
Further information on this disease
Patient-centred resources for this disease
Research activities on this disease
Specialised Social Services
The documents contained in this web site are presented for information purposes only. The material is in no way intended to replace professional medical care by a qualified specialist and should not be used as a basis for diagnosis or treatment.