hallux varus-preaxial polysyndactyly syndrome
Findings
No curated finding names hallux varus-preaxial polysyndactyly syndrome yet. Everything below is reference data from Mondo, HPO and GenCC, not evidence about what affects it.
Definition
Hallux varus-preaxial polysyndactyly syndrome is a rare, genetic, congenital limb malformation disorder characterized by bilateral medial displacement of the hallux and preaxial polysyndactyly of the first toes. Radiographs show broad, shortened, misshapen first metatarsals and may associate incomplete or complete duplication of proximal phalanges and duplication or triplication of distal phalanges. There have been no further descriptions in the literature since 1980.
Definition from the Mondo Disease Ontology (MONDO:0009321), read 2026-09-29. CC BY 4.0.
Features
2 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.
- Sandal gapHPOHP:0001852
- Very frequent (80% to 99% of cases)
- Clinodactyly of the 5th fingerHPOHP:0004209
- Frequent (30% to 79% of cases)
Where it sits
- A kind of
Other names
1 name
Resolves to: hallux varus-preaxial polysyndactyly syndrome
- Also called
- Kleiner-Holmes syndrome