raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:163979

X-linked intellectual disability-craniofacioskeletal syndrome

Type
Disease
Group
Disorder
Inheritance
Unknown
Age of onset
Antenatal, Infancy, Neonatal
Status
active

X-linked intellectual disability-craniofacioskeletal syndrome is a rare, hereditary, syndromic intellectual disability characterized by craniofacial and skeletal abnormalities in association with mild intellectual disability in females and early postnatal lethality in males. In addition to mild cognitive impairment, females present with microcephaly, short stature, skeletal features and extra temporal lobe gyrus. In males, intrauterine growth impairment, cardiac and urogenital anomalies have been reported.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enX-linked intellectual disability-craniofacioskeletal syndrome
frSyndrome de déficience intellectuelle liée à l'X-syndrome cranio-facio-squelettique
deKranio-fazio-skeletales Syndrom, X-chromosomales
esSíndrome de discapacidad intelectual-anomalías craneofacioesqueléticas ligado al X
itSindrome cranio-facio-scheletrica con disabilità intellettiva legata all'X
nlX-gebonden intellectuele achterstand - craniofacioskeletaal syndroom
ptSíndrome craniofacioesquelético-perturbação do desenvolvimento intelectual ligada ao X
plNiepełnosprawność intelektualna sprzężona z chromosomem X - zespół czaszkowo-twarzowo-szkieletowy
csX-vázaná mentální retardace s kraniofacioskeletálními symptomy
ukХ-зчеплена розумова відсталість-краніофаціально-скелетний синдром
zhX连锁智力障碍-颅颌面骨综合征
trX'e bağlı zihinsel yetersizlik-kraniyofasiyoskeletal sendrom

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM300712Evalidated
ICD-10Q87.8NTBTattributedvalidated
ICD-11LD90NTBTattributedvalidated
MONDO0010412Evalidated
UMLSC4750743Evalidated

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 (2):

No children.

4

Genes

0 direct

Orphanet records no gene directly on this code.

5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidatedORPHANET_17853486[PMID]
Cases/families9 casesWorldwideCase(s)Validated17853486[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

48 annotations · validated 2019-08-13
HPOTerm (as annotated by Orphanet)Diagnostic
Frequent (79-30%)
HP:0001488Bilateral ptosis
HP:0001256Intellectual disability, mild
HP:0000252Microcephaly
HP:0011833Overhanging nasal tip
HP:0001763Pes planus
HP:0000358Posteriorly rotated ears
HP:0009237Short 5th finger
HP:0000331Short chin
HP:0000322Short philtrum
HP:0004322Short stature
HP:0000219Thin upper lip vermilion
HP:0001863Toe clinodactyly
HP:0000430Underdeveloped nasal alae
Occasional (29-5%)
HP:00046912-3 toe syndactyly
HP:0011467Absent gallbladder
HP:0001903Anemia
HP:0008386Aplasia/Hypoplasia of the nails
HP:0001631Atrial septal defect
HP:0000337Broad forehead
HP:0002682Broad skull
HP:0001782Bulbous tips of toes
HP:0005306Capillary hemangioma
HP:0001321Cerebellar hypoplasia
HP:0000453Choanal atresia
HP:0000175Cleft palate
HP:0000028Cryptorchidism
HP:0000494Downslanted palpebral fissures
HP:0030148Heart murmur
HP:0000238Hydrocephalus
HP:0000126Hydronephrosis
HP:0002904Hyperbilirubinemia
HP:0001187Hyperextensibility of the finger joints
HP:0002901Hypocalcemia
HP:0000047Hypospadias
HP:0011611Interrupted aortic arch
HP:0002170Intracranial hemorrhage
HP:0010511Long toe
HP:0000054Micropenis
HP:0008551Microtia
HP:0001643Patent ductus arteriosus
HP:0000520Proptosis
HP:0002093Respiratory insufficiency
HP:0001838Rocker bottom foot
HP:0001873Thrombocytopenia
HP:0002777Tracheal stenosis
HP:0000582Upslanted palpebral fissure
HP:0001629Ventricular septal defect
HP:0006610Wide intermamillary distance

Annotation source: 17853486[PMID]

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Sources for this card