raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:247820

Ectodermal dysplasia-pili torti-cutaneous syndactyly syndrome

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

Ectodermal dysplasia-syndactyly syndrome is a rare, genetic ectodermal dysplasia syndrome characterized by sparse to absent scalp hair, eyebrows, and eyelashes (with pili torti when present), widely spaced, conical-shaped teeth with peg-shaped, conical crowns and enamel hypoplasia and palmoplantar hyperkeratosis, associated with partial cutaneous syndactyly in hands and feet.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enEctodermal dysplasia-pili torti-cutaneous syndactyly syndrome
frSyndrome de dysplasie ectodermique-pili torti-syndactylie cutanée
deEktodermale Dysplasie-Pili-Torti-Syndaktylie-SyndromEDSS1
esSíndrome de displasia ectodérmica-sindactiliaEDSS · EDSS1
itSindrome displasia ectodermica-pili torti-sindattilia cutanea
nlEctodermale dysplasie - pili torti - cutane syndactylie-syndroom
ptSíndrome de displasia ectodérmica-pili torti-sindactilia cutânea
plZespół dysplazja ektodermalna - syndaktyliaEDSS · EDSS1 · Zespół dysplazji ektodermalnej - pili torti - syndaktylii skórnej
csSyndrom zahrnující ektodermální dysplázii a syndaktyliiEDSS · ESSS1
ukСиндром ектодермальної дисплазії-pili torti-шкірної синдактилії
zh外胚层发育不良伴并指综合症EDSS1
trEktodermal displazi-sindaktili sendromEDSS · EDSS1

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM613573Evalidated
ICD-10Q82.8NTBTattributedvalidated
UMLSC4749852Evalidated

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 (1):

No children.

4

Genes

1 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
NECTIN4Disease-causing germline mutation(s) inAssessedHGNC:19688ENSG000001432176096071q23.3nectin cell adhesion molecule 420691405[PMID]_21346770[PMID]
5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Cases/families22 casesWorldwideCase(s)Validated25529316[PMID]
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidatedORPHANET_25529316[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

Orphanet has no HPO annotation for this code in this release.

7

Sources for this card