Freeman-Sheldon syndrome
Findings
No curated finding names Freeman-Sheldon syndrome yet. Everything below is reference data from Mondo, HPO and GenCC, not evidence about what affects it.
Definition
A very rare, multiple congenital contractures syndrome characterized by a microstomia with a whistling appearance of the mouth, distinctive facies, club foot and joint contractures. FSS is the most severe form of distal arthrogryposis.
Definition from the Mondo Disease Ontology (MONDO:0008675), read 2026-09-29. CC BY 4.0.
- Inheritance
- Autosomal dominant inheritance
- Onset and course
- Congenital onset · Infantile onset
HPO, annotations 2026-09-02
Features
57 features
What the disease is reported to present with, and how often among people who have it — never how often a feature means the disease. HPO, annotations 2026-09-02.
- CamptodactylyHPOHP:0012385
- 2 of 2 reported patients
- ChordeeHPOHP:0000041
- 1 of 1 reported patient
- Deeply set eyeHPOHP:0000490
- 1 of 1 reported patient
- Frequent (30% to 79% of cases)
- Dental crowdingHPOHP:0000678
- 14 of 14 reported patients
- Depressed nasal bridgeHPOHP:0005280
- 2 of 2 reported patients
- Flat faceHPOHP:0012368
- 1 of 1 reported patient
- Flexion contracture of fingerHPO
Show the remaining 45
- Narrow mouthHPOHP:0000160
- 1 of 1 reported patient
- Very frequent (80% to 99% of cases)
- Overlapping toeHPOHP:0001845
- 1 of 1 reported patient
- Pursed lipsHPOHP:0000205
- 1 of 1 reported patient
- Rocker bottom footHPOHP:0001838
- 1 of 1 reported patient
- Short neckHPOHP:0000470
- 1 of 1 reported patient
- Short noseHPOHP:0003196
- 1 of 1 reported patient
Genes
2 genes
Germline variants in the gene encoding each protein, as classified by GenCC submitters, each in their own words. Limited, disputed and refuted submissions are listed too.
Where it sits
Other names
10 names
Resolves to: Freeman-Sheldon syndrome
- Also called
- arthrogryposis, distal, type 2A (Freeman-Sheldon)cranio-carpo-tarsal syndromeCraniocarpotarsal dysplasiaCraniocarpotarsal dystrophydistal arthrogryposis type 2AFreeman Sheldon Syndromewhistling face syndromewhistling face-windmill vane hand syndromewhistling-face syndromewindmill-vane-hand syndrome