autosomal dominant popliteal pterygium syndrome
Findings
No curated finding names autosomal dominant popliteal pterygium syndrome yet. Everything below is reference data from Mondo, HPO and GenCC, not evidence about what affects it.
Definition
Autosomal dominant popliteal pterygium syndrome (AD-PPS) is a rare genetic malformative disorder characterized by cleft lip, with or without cleft palate, contractures of the lower extremities, abnormal external genitalia, syndactyly of fingers and/or toes, and a pyramidal skin fold over the hallux nail.
Definition from the Mondo Disease Ontology (MONDO:0007334), read 2026-09-29. CC BY 4.0.
- Inheritance
- Autosomal dominant inheritance
- Onset and course
- Congenital onset
HPO, annotations 2026-09-02
Features
28 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.
- Cleft palateHPOHP:0000175
- 6 of 6 reported patients
- Very frequent (80% to 99% of cases)
- Generalized hirsutismHPOHP:0002230
- Very frequent (80% to 99% of cases)
- Joint stiffnessHPOHP:0001387
- Very frequent (80% to 99% of cases)
- MicrognathiaHPOHP:0000347
- Very frequent (80% to 99% of cases)
- Thin upper lip vermilionHPOHP:0000219
- Very frequent (80% to 99% of cases)
- Toe syndactylyHPOHP:0001770
- Very frequent (80% to 99% of cases)
Show the remaining 16
- Finger syndactylyHPOHP:0006101
- Frequent (30% to 79% of cases)
- Hypoplastic labia majoraHPOHP:0000059
- 1 of 2 reported patients
- Frequent (30% to 79% of cases)
- Lip pitHPOHP:0100267
- Frequent (30% to 79% of cases)
- Non-midline cleft of the upper lipHPOHP:0100335
- Frequent (30% to 79% of cases)
- Nonketotic hyperglycinemiaHPOHP:0008288
- Frequent (30% to 79% of cases)
- Popliteal pterygiumHPOHP:0009756
Genes
1 gene
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.
- IRF6HGNC:6121
- Definitive · G2P · Autosomal dominant · 2025
- Strong · Labcorp Genetics (formerly Invitae) · Autosomal dominant · 2023
- Strong · PanelApp Australia · Autosomal dominant · 2025
- Supportive · Orphanet · Autosomal dominant · 2021
Where it sits
Other names
3 names
Resolves to: autosomal dominant popliteal pterygium syndrome
- Also called
- popliteal pterygium syndrome 1popliteal pterygium syndrome, autosomal dominantpopliteal web syndrome