raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:2053

Freeman-Sheldon syndrome

Synonyms: Craniocarpotarsal dysplasia · Craniocarpotarsal dystrophy · Distal arthrogryposis type 2A · Freeman-Burian syndrome · Whistling face syndrome

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

A rare congenital, distal arthogryposis syndrome characterized by microstomia, whistling-face appearance, Chin with V- or H- shaped creased, and prominent nasolabial folds; most patients present club foot and congenital joint contractures of the hands and feet. It is the most severe form of distal arthrogryposis.

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Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enFreeman-Sheldon syndromeCraniocarpotarsal dysplasia · Craniocarpotarsal dystrophy · Distal arthrogryposis type 2A · Freeman-Burian syndrome · Whistling face syndrome
frSyndrome de Freeman-SheldonArthrogrypose distale type 2A · Syndrome cranio-carpo-tarsien · Syndrome de Freeman-Burian · Syndrome de la face du siffleur
deFreeman-Sheldon-SyndromArthrogrypose, distale, Typ 2A · Freeman-Burian-Syndrom · Kraniokarpotarsale Dysplasie · Kraniokarpotarsale Dystrophie · Whistling-face-Syndrom
esSíndrome de Freeman-SheldonArtrogriposis distal tipo 2A · Displasia cráneo-carpo-tarsal · Distrofia cráneo-carpo-tarsal · Síndrome de Freeman-Burian · Síndrome de cara de silbador
itSindrome di Freeman-SheldonArtrogriposi distale, tipo 2A · Displasia cranio-carpo-tarsale · Distrofia cranio-carpo-tarsale · Sindrome con faccia da fischiatore · Sindrome di Freeman-Burian
nlSyndroom van Freeman-SheldonCraniocarpotarsale dysplasie · Craniocarpotarsale dystrofie · Distale artrogrypose type 2A · Syndroom van Freeman-Burian · Whistling face-syndroom
ptSíndrome Freeman-SheldonArtrogripose distal tipo 2A · Distrofia crânio-carpo-társica · Síndrome Freeman-Burian · Síndrome de face em assobio
plZespół Freemana i SheldonaDysplazja czaszkowo-nadgarstkowo-skokowa · Dystalna artrogrypoza typu 2A · Dystrofia czaszkowo-nadgarstkowo-skokowa · Zespół gwiżdżącej twarzy
csFreemanův-Sheldonův syndromKraniokarpotarsální dysplázie · Kraniokarpotarsální dystrofie · Distální arthrogrypóza, typ 2A · Syndrom pískající tváře · Freeman-Sheldonův syndrom
ukСиндром Фрімана-ШелдонаКраніокарпотарзальна дисплазія · Краніокарпотарзальна дистрофія · Дистальний артрогрипоз, тип 2А · Синдром Фрімана-Буріана · Синдром свистячого обличчя
zhFreeman-Sheldon 综合征远端关节弯曲2A型
trFreeman-Sheldon sendromuIslık çalan yüz sendromu · Kraniyokarpotarsal displazi · Kraniyokarpotarsal distrofi · Distal artrogripozis tip 2A

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM193700BTNTvalidated
OMIM277720BTNTvalidated
ICD-10Q87.0NTBTattributedvalidated
ICD-11LD26.4YNTBTindexvalidated
MONDO0008675Evalidated
MeSHC535483Evalidated
UMLSC0265224Evalidated
GARD6466Evalidated
MedDRA10073655Evalidated

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 (4):

No children.

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Genes

2 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
MYH3Disease-causing germline mutation(s) inAssessedHGNC:7573ENSG0000010906316072017p13.1myosin heavy chain 316642020[PMID]
NALCNDisease-causing germline mutation(s) inAssessedHGNC:19082ENSG0000010245261154913q32.3-q33.1sodium leak channel, non-selective25683120[PMID]
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Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidatedORPHANET
Cases/families100 casesWorldwideCase(s)Validated19309503[PMID]_[EXPERT]_23277889[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

31 annotations · validated 2016-06-01
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0000164Abnormality of the dentition
HP:0100490Camptodactyly of finger
HP:0010751Chin dimple
HP:0000457Depressed nasal ridge
HP:0000494Downslanted palpebral fissures
HP:0001508Failure to thrive
HP:0008872Feeding difficulties in infancy
HP:0001510Growth delay
HP:0000316Hypertelorism
HP:0001387Joint stiffness
HP:0000160Narrow mouth
HP:0002650Scoliosis
HP:0001762Talipes equinovarus
HP:0009465Ulnar deviation of finger
HP:0000430Underdeveloped nasal alae
HP:0000431Wide nasal bridge
Frequent (79-30%)
HP:0002167Abnormality of speech or vocalization
HP:0000028Cryptorchidism
HP:0000490Deeply set eye
HP:0000365Hearing impairment
HP:0001611Hypernasal speech
HP:0000343Long philtrum
HP:0002047Malignant hyperthermia
HP:0001557Prenatal movement abnormality
HP:0000508Ptosis
HP:0004322Short stature
HP:0000486Strabismus
Occasional (29-5%)
HP:0010489Absent palmar crease
HP:0100790Hernia
HP:0001562Oligohydramnios
HP:0001561Polyhydramnios

Run the differential on the 12 obligate / very frequent terms

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Sources for this card