raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:137783

Lethal congenital contracture syndrome type 3

Synonyms: LCCS3

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

Lethal congenital contracture syndrome type 3 is a rare arthrogryposis syndrome characterized by clinical features identical to Lethal congenital contracture syndrome type 2 (i.e. multiple congenital contactures (typically extended elbows and flexed knees), micrognathia, anterior horn cells degeneration, skeletal muscle atrophy (mainly in the lower limbs), in the absence of hydrops, pterygia or bone fractures), but without bladder enlargement.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enLethal congenital contracture syndrome type 3LCCS3
frSyndrome des contractures congénitales létales type 3= en
deSyndrom der kongenitalen letalen Kontrakturen Typ 3= en
esSíndrome de contractura letal congénita tipo 3= en
itSindrome da contratture congenite letali, tipo 3= en
nlLetale congenitale contracturen-syndroom type 3= en
ptSíndrome de contratura congénita letal tipo 3
plLetalny zespół wrodzonych przykurczy stawowych typu 3= en
csSyndrom vrozených letálních kontraktur, typ 3= en
ukЛетальний синдром вродженої контрактури, тип 3= en
zh致死性先天性挛缩综合征3型= en
trLetal Doğumsal kontraktür sendromu tip 3= en

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM611369Evalidated
OMIM614915BTNTvalidated
ICD-10Q68.8NTBTattributedvalidated
ICD-11LD26.4YNTBTindexvalidated
MONDO0012656Evalidated
MeSHC566961Evalidated
UMLSC1969655Evalidated

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 (3):

No children.

4

Genes

2 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
MYBPC1Disease-causing germline mutation(s) inAssessedHGNC:7549ENSG0000019609116079412q23.2myosin binding protein C122610851[PMID]
PIP5K1CDisease-causing germline mutation(s) inAssessedHGNC:8996ENSG0000018611160610219p13.3phosphatidylinositol-4-phosphate 5-kinase type 1 gamma17701898[PMID]
5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Cases/families14 casesWorldwideCase(s)Validated17701898[PMID]_22610851[PMID]
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidatedORPHANET_17701898[PMID]_22610851[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