tetramelic monodactyly
Findings
No curated finding names tetramelic monodactyly yet. Everything below is reference data from Mondo, HPO and GenCC, not evidence about what affects it.
Definition
Tetramelic monodactyly is a rare, genetic, congenital limb malformation disorder characterized by the presence of a single digit on all four extremities. Malformation is typically isolated however, aplastic and hypoplastic defects in the remaining skeletal parts of hands and feet have been reported. There have been no further descriptions in the literature since 1992.
Definition from the Mondo Disease Ontology (MONDO:0008544), 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.
- OligodactylyHPOHP:0012165
- Very frequent (80% to 99% of cases)
- Split handHPOHP:0001171
- Very frequent (80% to 99% of cases)
Where it sits
Other names
1 name
Resolves to: tetramelic monodactyly
- Also called
- Sommer-Hines syndrome