raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:465824

Fetal encasement syndrome

Type
Malformation syndrome
Group
Disorder
Inheritance
Autosomal recessive
Age of onset
Antenatal
Status
active

Fetal encasement syndrome is a rare, lethal developmental defect during embryogenesis characterized by severe fetal malformations, including craniofacial dysmorphism (abnormal cyst in the cranial region, hypoplastic eyeballs, two orifices in the nasal region separated by a nasal septum, abnormal orifice replacing the mouth), omphalocele and immotile, hypoplastic limbs encased under an abnormal, transparent, membrane-like skin. Additional features include absence of adnexal structures of the skin on the outer aspect of the limbs, as well as underdeveloped skeletal muscles and bones. Association with tetralogy of Fallot, horse-shoe kidneys and diaphragm and lung lobulation defects is reported.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enFetal encasement syndrome
frSyndrome des membres enveloppés dans un cocon
deSyndrom der fetalen Einkapselung
esSíndrome encapsulante fetal
itSindrome da rivestimento fetale
nlFoetale inkapseling syndroom
ptSíndrome do revestimento fetal
plZespół kokonu płodu
csSyndrom zapouzdření plodu
ukСиндром внутрішньоутробної інкапсуляції плода
zh胎儿包埋综合征
trFetal kapsülleme sendromu

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM613630Evalidated
ICD-10Q87.8NTBTattributedvalidated
MONDO0013334Evalidated
MONDO13334Evalidated
UMLSC3150891Evalidated

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
CHUKDisease-causing germline mutation(s) inAssessedHGNC:1974ENSG0000021334160066410q24.31component of inhibitor of nuclear factor kappa B kinase complex20961246[PMID]
5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Cases/families2 casesWorldwideCase(s)Validated20961246[PMID]
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidatedORPHANET_20961246[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.

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Sources for this card