raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:50814

Craniolenticulosutural dysplasia

Synonyms: Boyadjiev-Jabs syndrome

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

A rare genetic multiple congenital anomalies/dysmorphic syndrome characterized by large and late-closing fontanels (the anterior fontanel may not completely ossify in adulthood) associated with facial dysmorphism and mild generalized skeletal dysplasia. Patients usually present with short stature, significant hypertelorism and eye abnormalities (early onset cataract and other lens abnormalities, esotropia, optic atrophy). Associated facial features include abnormal hair (sparce and brittle), hyperpigmentation with capillary hemangioma on the forehead, macrocephaly, frontal bossing, wide nasal bridge, long philtrum, large mouth, thin vermilion, high arched palate and abnormal dentition. Other associated morphological abnormalities include vertebral wedging with scoliosis, high and narrow iliac wings, pectus excavatum, joint hypermobility and flat feet.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enCraniolenticulosutural dysplasiaBoyadjiev-Jabs syndrome
frDysplasie cranio-lenticulo-suturaleSyndrome de Boyadjiev-Jabs
deDysplasie, kranio-lentikulo-suturaleBoyadjiev-Jabs-Syndrom
esDisplasia craneolenticulosuturalSíndrome de Boyadjiev-Jabs
itDisplasia cranio-lenticulo-suturaleSindrome di Boyadjiev-Jabs
nlCranio-lenticulo-suturale dysplasieSyndroom van Boyadjiev-Jabs
ptDisplasia cranio-lenticulo-suturalSíndrome Boyadjiev-Jabs
plDysplazja czaszkowo-soczewkowato-szwowaZespół Boyadjiev i Jabsa
csKraniolentikulosuturální dysplázieBoyadjievův-Jabsové syndrom · Boyadjiev-Jabsové syndrom
ukКраніолентикулосуглобова дисплазіяСиндром Бояджієва-Джабса
zh颅豆状核发育不良Boyadjiev-Jabs综合症
trKraniolentikülosutural displaziBoyadjiev-Jabs sendromu

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM607812Evalidated
ICD-10Q75.8NTBTattributedvalidated
ICD-11LB70.YNTBTindexvalidated
MONDO0011911Evalidated
MeSHC564332Evalidated
UMLSC1843042Evalidated

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

1 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
SEC23ADisease-causing germline mutation(s) (loss of function) inAssessedHGNC:10701ENSG0000010093461051114q21.1SEC23 homolog A, COPII component16980979[PMID]
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Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Cases/families28 casesWorldwideCase(s)ValidatedORPHANET
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.

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HPO phenotypes

34 annotations · validated 2016-06-01
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0002299Brittle hair
HP:0000670Carious teeth
HP:0002208Coarse hair
HP:0004331Decreased skull ossification
HP:0000684Delayed eruption of teeth
HP:0002007Frontal bossing
HP:0008808High iliac wings
HP:0000316Hypertelorism
HP:0000685Hypoplasia of teeth
HP:0000327Hypoplasia of the maxilla
HP:0000239Large fontanelles
HP:0000343Long philtrum
HP:0000691Microdontia
HP:0008031Posterior Y-sutural cataract
HP:0008444Posterior wedging of vertebral bodies
HP:0006480Premature loss of teeth
HP:0000426Prominent nasal bridge
HP:0000336Prominent supraorbital ridges
HP:0002650Scoliosis
HP:0004322Short stature
HP:0002652Skeletal dysplasia
HP:0000319Smooth philtrum
HP:0008070Sparse hair
HP:0000233Thin vermilion border
HP:0000154Wide mouth
HP:0000445Wide nose
Frequent (79-30%)
HP:0001000Abnormality of skin pigmentation
HP:0005306Capillary hemangioma
HP:0000953Hyperpigmentation of the skin
HP:0000774Narrow chest
HP:0001763Pes planus
Occasional (29-5%)
HP:0000750Delayed speech and language development
HP:0000218High palate
HP:0001382Joint hypermobility

Run the differential on the 12 obligate / very frequent terms

Annotation source: 12677423[PMID]

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Sources for this card