raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:487796

Takenouchi-Kosaki syndrome

Synonyms: Macrothrombocytopenia-lymphedema-developmental delay-facial dysmorphism-camptodactyly syndrome

Type
Malformation syndrome
Group
Disorder
Inheritance
Autosomal dominant
Age of onset
Neonatal
Status
active

A rare multiple congenital anomalies/dysmorphic syndrome with intellectual disability characterized by global developmental delay, intellectual disability, macrothrombocytopenia, lymphedema, and dysmorphic facial features (like synophrys, ptosis, eversion of the lateral portion of the lower eyelid, and thin upper lip, among others). Additional reported manifestations include cardiac and genitourinary anomalies, sensorineural hearing loss, ophthalmologic abnormalities, skeletal anomalies, and immunodeficiency. Brain imaging may show enlarged ventricles, cerebellar atrophy, or white matter changes.

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Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enTakenouchi-Kosaki syndromeMacrothrombocytopenia-lymphedema-developmental delay-facial dysmorphism-camptodactyly syndrome
frSyndrome Takenouchi-KosakiSyndrome de macrothrombocytopénie-lymphoedème-retard de développement-dysmorphie faciale-camptodactylie
deTakenouchi-Kosaki-Syndrom
esSíndrome de Takenouchi-Kosaki
itSindrome di Takenouchi-KosakiSindrome macrotrombocitopenia-linfedema-ritardo dello sviluppo-dismorfismi facciali-camptodattilia
nlSyndroom van Takenouchi-Kosaki
ptSíndrome Takenouchi-KosakiDeficiência CDC42
plZespół makrotrombocytopenii, obrzęku limfatycznego, opóźnienia rozwoju, dysmorfii twarzy I przykurczów palcówZespół Takenouchiego i Kosakiego
csSyndrom zahrnující makrotrombocytopenii, lymfedém, opoždění vývoje, faciální dysmorfismus a kamptodaktyliiTakenouchiho-Kosakiho syndrom · Takenouchi-Kosakiho syndrom
ukСиндром Такенучі-КосакіСиндром макротромбоцитопенії-лімфедеми-затримки розвитку-дизморфізму обличчя- камптодактилії
zh巨血小板减少-淋巴水肿-发育迟缓-面部畸形-先天性指屈曲综合征Takenouchi-Kosaki综合征
trMakro trombositopeni-lenfödem-gelişme geriliği-fasiyal dismorfizm-kamptodaktili sendromuTakenouchi-Kosaki sendromu

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM616737Evalidated
ICD-10Q87.8NTBTattributedvalidated
ICD-11LD2F.1NTBTattributedvalidated
MONDO0014757Evalidated
UMLSC4225222Evalidated

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 (5):

No children.

4

Genes

1 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
CDC42Disease-causing germline mutation(s) inAssessedHGNC:1736ENSG000000708311169521p36.12cell division cycle 4226386261[PMID]_26708094[PMID]
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Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Cases/families2 casesWorldwideCase(s)Validated26708094[PMID]
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidatedORPHANET_26708094[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.

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HPO phenotypes

71 annotations · validated 2020-01-09
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0001999Abnormal facial shape
HP:0410263Brain imaging abnormality
Frequent (79-30%)
HP:0001627Abnormal heart morphology
HP:0002518Abnormal periventricular white matter morphology
HP:0000766Abnormal sternum morphology
HP:0000818Abnormality of the endocrine system
HP:0000119Abnormality of the genitourinary system
HP:0002079Hypoplasia of the corpus callosum
HP:0011877Increased mean platelet volume
HP:0001249Intellectual disability
HP:0008897Postnatal growth retardation
HP:0002719Recurrent infections
HP:0002650Scoliosis
HP:0001873Thrombocytopenia
HP:0002119Ventriculomegaly
Occasional (29-5%)
HP:0100763Abnormality of the lymphatic system
HP:0000924Abnormality of the skeletal system
HP:0001344Absent speech
HP:0000414Bulbous nose
HP:0012385Camptodactyly
HP:0001272Cerebellar atrophy
HP:0007033Cerebellar dysplasia
HP:0030084Clinodactyly
HP:0001305Dandy-Walker malformation
HP:0000689Dental malocclusion
HP:0000494Downslanted palpebral fissures
HP:0002714Downturned corners of mouth
HP:0007655Eversion of lateral third of lower eyelids
HP:0000577Exotropia
HP:0000454Flared nostrils
HP:0001371Flexion contracture
HP:0008947Floppy infant
HP:0001263Global developmental delay
HP:0000365Hearing impairment
HP:0002553Highly arched eyebrow
HP:0000126Hydronephrosis
HP:0000316Hypertelorism
HP:0000047Hypospadias
HP:0002721Immunodeficiency
HP:0000023Inguinal hernia
HP:0000343Long philtrum
HP:0001004Lymphedema
HP:0000252Microcephaly
HP:0011800Midface retrusion
HP:0000341Narrow forehead
HP:0003764Nevus
HP:0000648Optic atrophy
HP:0001845Overlapping toe
HP:0001643Patent ductus arteriosus
HP:0002465Poor speech
HP:0000358Posteriorly rotated ears
HP:0011220Prominent forehead
HP:0009623Proximal placement of thumb
HP:0000508Ptosis
HP:0007663Reduced visual acuity
HP:0001250Seizure
HP:0000322Short philtrum
HP:0000319Smooth philtrum
HP:0045075Sparse eyebrow
HP:0000486Strabismus
HP:0000664Synophrys
HP:0001182Tapered finger
HP:0010804Tented upper lip vermilion
HP:0000219Thin upper lip vermilion
HP:0005160Total anomalous pulmonary venous return
HP:0000122Unilateral renal agenesis
HP:0000582Upslanted palpebral fissure
HP:0000465Webbed neck
HP:0000154Wide mouth
HP:0000431Wide nasal bridge
HP:0000687Widely spaced teeth

Run the differential on the 2 obligate / very frequent terms

Annotation source: 26708094[PMID]_26386261[PMID]_29394990[PMID]

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Sources for this card