raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:96172

Ring chromosome 3 syndrome

Synonyms: Ring 3 · Ring chromosome 3

Type
Malformation syndrome
Group
Disorder
Age of onset
Antenatal, Infancy, Neonatal
Status
active

Ring chromosome 3 syndrome is a rare chromosomal anomaly syndrome with a highly variable phenotype principally characterized by pre- and postnatal growth retardation, short stature, developmental delay, mild to severe intellectual disability, microcephaly and mild dysmorphic features (incl. triangular face, dysplastic ears, upslanting palpebral fissures, epicanthic folds, broad nasal bridge, full nasal tip, long philtrum, downturned corners of the mouth, and micro/retrognathia). Additional manifestations reported include hypotonia, mild articular limitation, hearing loss, digital anomalies (i.e. clinodacytyly, brachydactyly), café-au-lait patches and hypospadias.

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Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enRing chromosome 3 syndromeRing 3 · Ring chromosome 3
frSyndrome du chromosome 3 en anneauChromosome 3 en anneau
deRingchromosom-3-SyndromRingchromosom 3
esSíndrome del cromosoma 3 en anilloAnillo 3 · Cromosoma 3 en anillo
itCromosoma 3 ad anello
nlRingchromosoom 3-syndroomRing 3 · Ringchromosoom 3
ptCromossoma 3 em anel
plChromosom pierścieniowy 3= en
csRing chromozom 3Kruhový chromozom 3
ukСиндром кільцевої хромосоми 3Кільце 3 · Кільцева хромосома 3
zh3号环状染色体综合征3号环状染色体
trHalka kromozom 3 sendromuHalka 3 · Halka kromozomu 3

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
ICD-10Q93.2NTBTattributedvalidated
ICD-11LD7YNTBTindexvalidated
MONDO0019904Evalidated
UMLSC4707449Evalidated
GARD10839Evalidated

E exact · NTBT this ORPHAcode is narrower than the target · BTNT broader than the target · ND not decided.

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Classification

Preferential parent (Orphanet linearisation):

Parents in the classifications (1):

No children.

4

Genes

0 direct

Orphanet records no gene directly on this code.

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Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Cases/families11 casesWorldwideCase(s)Validated11491310[PMID]_27984612[PMID]
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidatedORPHANET_11491310[PMID]_27984612[PMID]

Value is Orphadata's ValMoy: the mean estimate per 100 000 for prevalence and incidence, the number of cases or families for case reports.

6

HPO phenotypes

21 annotations · validated 2025-09-05
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0000252Microcephaly
HP:0008897Postnatal growth retardation
Frequent (79-30%)
HP:0000377Abnormal pinna morphology
HP:0001156Brachydactyly
HP:0030084Clinodactyly
HP:0002714Downturned corners of mouth
HP:0000286Epicanthus
HP:0001249Intellectual disability
HP:0001511Intrauterine growth retardation
HP:0000343Long philtrum
HP:0000308Microretrognathia
HP:0004322Short stature
HP:0000325Triangular face
HP:0000431Wide nasal bridge
Occasional (29-5%)
HP:0001531Failure to thrive in infancy
HP:0008872Feeding difficulties in infancy
HP:0000218High palate
HP:0000047Hypospadias
HP:0001252Hypotonia
HP:0000508Ptosis
HP:0000574Thick eyebrow

Run the differential on the 2 obligate / very frequent terms

Annotation source: 21849783[PMID]_7154048[PMID]

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Sources for this card