raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:1790

Hypomandibular faciocranial dysostosis

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

Hypomandibular faciocranial dysostosis is a cranial malformation characterized by facial dysmorphism (proptosis, frontal bossing, midface and zygomatic arches hypoplasia, short nose with anteverted nostrils, microstomia with persistent buccopharyngeal membrane, severe hypoglossia with glossoptosis, severe mandibular hypoplasia, and low set ears) associated with laryngeal hypoplasia and craniosynostosis. Other variable features include cleft palate, optic nerve coloboma and choanal stenosis.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enHypomandibular faciocranial dysostosis
frDysostose facio-crânienne hypomandibulaire
deDysostose, faziokraniale hypomandibuläre
esDisostosis faciocranenana hipomandibular
itDisostosi faciocraniale ipomandibolare
nlHypomandibulaire faciocraniale dysostose
ptDisostose facio-cranio-hipomandibular
plDyzostoza twarzowo-czaszkowa z niedorozwojem żuchwy
csHypomandibulární faciokraniální dysostóza
ukПіднижньощелепний черепнолицьовий дизостоз
zh下颌面颅骨发育不良
trHipomandibular fasiyokraniyal disostoz

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM241310Evalidated
ICD-10Q75.4NTBTattributedvalidated
MONDO0009425Evalidated
MeSHC537154Evalidated
UMLSC1855848Evalidated
GARD2907Evalidated

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 (4):

No children.

4

Genes

0 direct

Orphanet records no gene directly on this code.

5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Cases/families3 casesWorldwideCase(s)Validated8135280[PMID]
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidatedORPHANET_8135280[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

27 annotations · validated 2016-06-01
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0005607Abnormal tracheobronchial morphology
HP:0000463Anteverted nares
HP:0010295Aplasia/Hypoplasia of the tongue
HP:0100543Cognitive impairment
HP:0000369Low-set ears
HP:0005439Maxillozygomatic hypoplasia
HP:0011800Midface retrusion
HP:0002205Recurrent respiratory infections
HP:0003196Short nose
Frequent (79-30%)
HP:0000193Bifid uvula
HP:0000248Brachycephaly
HP:0000452Choanal stenosis
HP:0000175Cleft palate
HP:0001363Craniosynostosis
HP:0000494Downslanted palpebral fissures
HP:0008749Laryngeal hypoplasia
HP:0000160Narrow mouth
HP:0000588Optic disc coloboma
HP:0001561Polyhydramnios
HP:0000520Proptosis
Occasional (29-5%)
HP:0000008Abnormal morphology of female internal genitalia
HP:0001631Atrial septal defect
HP:0001522Death in infancy
HP:0001643Patent ductus arteriosus
HP:0002777Tracheal stenosis
HP:0000243Trigonocephaly
HP:0000582Upslanted palpebral fissure

Run the differential on the 9 obligate / very frequent terms

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Sources for this card