Rare diseases · Sign or symptom
Partial duplication of the proximal phalanges of the hand
Partial duplication of the innermost bones of the hand
HP:0010003
What it means
A partial duplication, depending on severity leading to a broad or bifid appearance, affecting one or more of the proximal phalanges of the hand. As opposed to a complete duplication there is still a variable degree of fusion between the duplicated bones.
Part of the broader category
Partial duplication of the proximal…
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Start free with EleplanThis page uses the Human Phenotype Ontology (2026-06-23) — Human Phenotype Ontology Consortium, hpo.jax.org. Disease associations from Orphanet (INSERM), CC BY 4.0. Content is educational and is not medical advice.