raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:314555

Facial dysmorphism-ocular anomalies-osteopenia-intellectual disability-dental anomalies syndrome

Synonyms: Hamamy syndrome

Type
Malformation syndrome
Group
Disorder
Inheritance
Autosomal recessive
Age of onset
Infancy, Neonatal
Status
active

A rare, genetic developmental defect during embryogenesis disorder characterized by craniofacial dysmorphism (incl. brachycephaly, prominent forehead, sparse lateral eyebrows, severe hypertelorism, upslanting palpebral fissures, epicanthal folds, protruding ears, broad nasal bridge, pointed nasal tip, flat philtrum, anteverted nostrils, large mouth, thin upper vermilion border, highly arched palate and mild micrognathia) associated with osteopenia leading to repeated long bone fractures, severe myopia, mild to moderate sensorineural or mixed hearing loss, enamel hypoplasia, sloping shoulders and mild intellectual disability.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enFacial dysmorphism-ocular anomalies-osteopenia-intellectual disability-dental anomalies syndromeHamamy syndrome
frSyndrome de dysmorphie faciale-anomalies oculaires-ostéopénie-déficience intellectuelle-anomalies dentairesSyndrome de Hamamy
deGesichtsdysmorphie-okuläre Anomalien-Osteopenie-Intelligenzminderung-Zahnanomalien-SyndromHamamy-Syndrom
esSíndrome de dismorfia facial-anomalías oculares-osteopenia-discapacidad intelectual-anomalías dentariasSíndrome de Hamamy
itSindrome da dismorfismi facciali-miopia grave-osteopenia-disabilità intellettiva-anomalie dei dentiSindrome di Hamamy
nlFaciale dysmorfie - oculaire anomalieën - osteopenie - intellectuele achterstand - dentale anomalieën-syndroomSyndroom van Hamamy
ptSíndrome de dismorfia facial-anomalias oculares-osteopenia-perturbação do desenvolvimento intelectual-anomalias dentáriasSíndrome Hamamy
plZespół dysplazja twarzowo-czaszkowa-osteopeniaZespół Hamamy · Zespół dysmorfii twarzy-ciężkiej krótkowzroczności-osteopenii-niepełnosprawności intelektualnej-wad zębów · Zespół dysmorfii twarzy-wad oczu-osteopenii-niepełnosprawności intelektualnej-wad zębów
csSyndrom zahrnující obličejový dysmorfismus, těžkou myopii, osteopenii, mentální retardaci a zubní anomálieHamamyové syndrom · Syndrom zahrnující kraniofaciální dysplázii a osteopenii
ukСиндром дисморфізму обличчя-аномалії очей-остеопенії-інтелектуальної недостатності-зубних аномалійСиндром Хамамі
zh颅面发育不良-骨质减少综合征Hamamy综合征
trKraniofasiyal displazi-osteopeni sendromuHamamy sendromu

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM611174Evalidated
ICD-10Q87.5NTBTattributedvalidated
MONDO0012634Evalidated
MONDO12634Evalidated
MeSHC566988Evalidated
UMLSC1970027Evalidated

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

3

Classification

Preferential parent (Orphanet linearisation):

Parents in the classifications (7):

No children.

Codes that Orphanet moved or referred to this one:

4

Genes

1 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
IRX5Disease-causing germline mutation(s) inAssessedHGNC:14361ENSG0000017684260619516q12.2iroquois homeobox 522581230[PMID]
5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Cases/families5 casesWorldwideCase(s)Validated22581230[PMID]
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidatedORPHANET

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

Orphanet has no HPO annotation for this code in this release.

7

Sources for this card