Oliver syndrome
MONDO:0009777Mondo
Findings
No curated finding names Oliver syndrome yet. Everything below is reference data from Mondo, HPO and GenCC, not evidence about what affects it.
Definition
Oliver syndrome is a very rare syndrome characterized by intellectual deficit, postaxial polydactyly, and epilepsy.
Definition from the Mondo Disease Ontology (MONDO:0009777), read 2026-09-29. CC BY 4.0.
Features
25 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.
- Postaxial hand polydactylyHPOHP:0001162
- Very frequent (80% to 99% of cases)
- Profound intellectual disabilityHPOHP:0002187
- Very frequent (80% to 99% of cases)
- Absent speechHPOHP:0001344
- Frequent (30% to 79% of cases)
- Bilateral tonic-clonic seizureHPOHP:0002069
- Frequent (30% to 79% of cases)
- Cutaneous finger syndactylyHPOHP:0010554
- Frequent (30% to 79% of cases)
- Mandibular prognathiaHPOHP:0000303
- Frequent (30% to 79% of cases)
- Poor speechHPOHP:0002465
- Frequent (30% to 79% of cases)
- Postaxial foot polydactylyHPOHP:0001830
- Frequent (30% to 79% of cases)
- Short toeHPOHP:0001831
- Frequent (30% to 79% of cases)
- Absent earlobeHPOHP:0000387
- Occasional (5% to 29% of cases)
- Camptodactyly of fingerHPOHP:0100490
- Occasional (5% to 29% of cases)
- Clinodactyly of the 5th fingerHPOHP:0004209
- Occasional (5% to 29% of cases)
Show the remaining 13
- Dental malocclusionHPOHP:0000689
- Occasional (5% to 29% of cases)
- Elbow flexion contractureHPOHP:0002987
- Occasional (5% to 29% of cases)
- High palateHPOHP:0000218
- Occasional (5% to 29% of cases)
- Hyperconvex fingernailsHPOHP:0001812
- Occasional (5% to 29% of cases)
- Intrauterine growth retardationHPOHP:0001511
- Occasional (5% to 29% of cases)
- Knee flexion contractureHPOHP:0006380
- Occasional (5% to 29% of cases)
Where it sits
Other names
1 name
Resolves to: Oliver syndrome
- Also called
- postaxial polydactyly-intellectual disability syndrome