raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:1234

Bartsocas-Papas syndrome

Synonyms: Autosomal recessive popliteal pterygium syndrome · Lethal popliteal pterygium syndrome

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

Bartsocas-Papas syndrome is a rare, inherited, popliteal pterygium syndrome characterized by severe popliteal webbing, microcephaly, a typical face with short palpebral fissures, ankyloblepharon, hypoplastic nose, filiform bands between the jaws and facial clefts, oligosyndactyly, genital abnormalities, and additional ectodermal anomalies (i.e. absent hair, eyebrows, lashes, nails). It is often fatal in the neonatal period, but patients living until childhood have been reported.

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Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enBartsocas-Papas syndromeAutosomal recessive popliteal pterygium syndrome · Lethal popliteal pterygium syndrome
frSyndrome de Bartsocas-PapasSyndrome de la bride poplitée autosomique récessif · Syndrome des ptérygiums poplités autosomique récessif · Syndrome létal de la bride poplitée · Syndrome létal de ptérygiums poplités
deBartsocas-Papas-SyndromPopliteales Pterygium-Syndrom, autosomal-rezessives · Popliteales Pterygium-Syndrom, letaler Typ
esSíndrome de Bartsocas-PapasSíndrome de pterigium poplíteo autosómico recesivo · Síndrome de pterigium poplíteo letal
itSindrome di Bartsocas-PapasSindrome dello pterigio popliteo, autosomica recessiva · Sindrome letale dello pterigio popliteo
nlSyndroom van Bartsocas-PapasAutosomaal recessief popliteaal pterygium-syndroom · Letaal popliteaal pterygium-syndroom
ptSíndrome Bartsocas-PapasSíndrome pterígio poplíteo autossómico recessivo · Síndrome pterígio poplíteo tipo letal
plDysplazja uszno-kostna Bartsocasa i PapasaAutosomalny recesywny zespół płetwistości podkolanowych · Letalny zespół płetwistości podkolanowych
csBartsocasův-Papasův syndromSyndrom letálního popliteálního pterygia · Syndrom autozomálně recesivního popliteálního pterygia · Bartsocas-Papasův syndrom
ukСиндром Бартсокаса-ПапасаАутосомно-рецесивний синдром підколінного птеригіуму · Летальний синдром підколінного птеригіуму
zhBartsocas-Papas综合征常染色体隐性腘窝翼状赘蹼综合征
trBartsocas-Papas sendromuLetal popliteal piterjiyum sendromu · Otozomal çekinik popliteal piterjiyum sendromu

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM263650BTNTvalidated
OMIM619339BTNTvalidated
ICD-10Q87.2NTBTattributedvalidated
ICD-11LD26.4YNTBTindexvalidated
MeSHC564874Evalidated
UMLSC1849718Evalidated
GARD4436Evalidated

E exact · NTBT this ORPHAcode is narrower than the target · BTNT broader than the target · ND not decided.

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Classification

Preferential parent (Orphanet linearisation):

Parents in the classifications (5):

No children.

Codes that Orphanet moved or referred to this one:

4

Genes

1 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
RIPK4Disease-causing germline mutation(s) (loss of function) inAssessedHGNC:496ENSG0000018342160570621q22.3receptor interacting serine/threonine kinase 422197488[PMID]_22197489[PMID]
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Prevalence and incidence

3 records
TypeClassValueAreaQualificationValidationSource
Cases/families24 casesWorldwideCase(s)ValidatedORPHANET
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidatedORPHANET
Prevalence at birth1-9 / 1 000 0000.15 / 100 000SpainValue and classValidated1867261[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

26 annotations · validated 2016-06-01
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0007418Alopecia totalis
HP:0000062Ambiguous genitalia
HP:0009755Ankyloblepharon
HP:0010185Aplasia/Hypoplasia of the distal phalanges of the toes
HP:0100840Aplasia/Hypoplasia of the eyebrow
HP:0000175Cleft palate
HP:0006101Finger syndactyly
HP:0000050Hypoplastic male external genitalia
HP:0001800Hypoplastic toenails
HP:0000161Median cleft lip
HP:0000252Microcephaly
HP:0009756Popliteal pterygium
HP:0200102Sparse or absent eyelashes
HP:0100240Synostosis of joints
HP:0001883Talipes
HP:0001770Toe syndactyly
Frequent (79-30%)
HP:0009777Absent thumb
HP:0007957Corneal opacity
HP:0000625Eyelid coloboma
HP:0001249Intellectual disability
HP:0000347Micrognathia
HP:0000160Narrow mouth
HP:0003196Short nose
HP:0000430Underdeveloped nasal alae
Occasional (29-5%)
HP:0030680Abnormal cardiovascular system morphology
HP:0008678Renal hypoplasia/aplasia

Run the differential on the 12 obligate / very frequent terms

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Sources for this card