raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:363686

Severe intellectual disability-poor language-strabismus-grimacing face-long fingers syndrome

Type
Disease
Group
Disorder
Inheritance
Autosomal dominant
Age of onset
Infancy, Neonatal
Status
active

A rare, genetic, syndromic intellectual disability disorder characterized by global development delay with very limited or absent speech and language, severe intellectual disability, long slender fingers, ocular abnormalities (typically strabismus or hypermetropia), and facial dysmorphism that includes a grimacing facial expression, a tubular-shaped nose with a prominent, broad base and tip, and other variable features, such as broad forehead, hypertelorism, deep-set eyes, narrow palpebral fissures, short philtrum and/or broad mouth.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enSevere intellectual disability-poor language-strabismus-grimacing face-long fingers syndrome
frSyndrome de déficience intellectuelle sévère-trouble du langage-strabisme-visage grimaçant-doigts longs
deSchwere Intelligenzminderung-eingeschränktes Sprachvermögen-Strabismus-grimassierendes Gesicht-lange Finger-Syndrom
esSíndrome de discapacidad intelectual grave-lenguaje pobre-estrabismo-cara con muecas-dedos largos
itSindrome da disabilità intellettiva grave, deficit del linguaggio, strabismo, smorfie facciali e dita lunghe
nlErnstige intellectuele achterstand - taalachterstand - strabisme - grimasserend gezicht - lange vingers-syndroom
ptSíndrome de perturbação do desenvolvimento intelectual grave-défice de linguagem-estrabismo-face em careta-dedos longos
plZespół ciężka niepełnosprawność intelektualna-słabe umiejętności językowe-zez-grymas na twarzy-długie palce dłoni
csSyndrom zahrnující těžkou mentální retardaci, poruchu řeči, strabismus, grimasování a dlouhé prsty ruky
ukСиндром глибокої розумової відсталості-бідної мови-косоокості-гримаси на обличчі-довгих пальців
zh重度智力障碍-语言贫乏-斜视-鬼脸-长指综合征
trAğır zihinsel yetersizlik-zayıf dil-şaşılık-yüz buruşturan-uzun parmak sendromu

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM615074Evalidated
ICD-10Q87.8NTBTattributedvalidated
MONDO0014034Evalidated
UMLSC4750954Evalidated
GARD12815Evalidated

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

1 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
GATAD2BDisease-causing germline mutation(s) (loss of function) inAssessedHGNC:30778ENSG000001436146149981q21.3GATA zinc finger domain containing 2B23644463[PMID]
5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Cases/families4 casesWorldwideCase(s)Validated23644463[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

48 annotations · validated 2019-08-02
HPOTerm (as annotated by Orphanet)Diagnostic
Frequent (79-30%)
HP:0002500Abnormal cerebral white matter morphology
HP:0000337Broad forehead
HP:0000455Broad nasal tip
HP:0012448Delayed myelination
HP:0000273Facial grimacing
HP:0002213Fine hair
HP:0008947Floppy infant
HP:0002121Generalized non-motor (absence) seizure
HP:0001263Global developmental delay
HP:0000752Hyperactivity
HP:0000484Hyperopic astigmatism
HP:0010864Intellectual disability, severe
HP:0100807Long fingers
HP:0002465Poor speech
HP:0000322Short philtrum
HP:0000486Strabismus
HP:0000219Thin upper lip vermilion
HP:0000154Wide mouth
Occasional (29-5%)
HP:0000483Astigmatism
HP:0000729Autistic behavior
HP:0009836Broad distal phalanx of finger
HP:0012450Chronic constipation
HP:0000490Deeply set eye
HP:0005280Depressed nasal bridge
HP:0000286Epicanthus
HP:0011968Feeding difficulties
HP:0002007Frontal bossing
HP:0000218High palate
HP:0000316Hypertelorism
HP:0000047Hypospadias
HP:0000748Inappropriate laughter
HP:0002546Incomprehensible speech
HP:0001511Intrauterine growth retardation
HP:0001382Joint hypermobility
HP:0000637Long palpebral fissure
HP:0010511Long toe
HP:0000744Low frustration tolerance
HP:0002061Lower limb spasticity
HP:0000347Micrognathia
HP:0045025Narrow palpebral fissure
HP:0008770Obsessive-compulsive trait
HP:0000609Optic nerve hypoplasia
HP:0000629Periorbital fullness
HP:0000742Self-mutilation
HP:0002360Sleep abnormality
HP:0100033Tics
HP:0000582Upslanted palpebral fissure
HP:0001566Widely-spaced maxillary central incisors

Annotation source: 23033978[PMID]_23644463[PMID]_30482549[PMID]_31205050[PMID]

7

Sources for this card