Rare diseases · Sign or symptom

Short proximal phalanx of the 5th finger

Short innermost pinkie finger bone

HP:0009226

What it means

Hypoplastic/small proximal phalanx of the fifth finger.

Rare diseases that can present with this1

The range is how often this sign appears among people diagnosed with each disease — it is not a probability of having any of them. Many of these signs also occur in common, non-rare conditions. A sign on this page is a conversation to have with a clinician, not a conclusion.

Part of the broader category

Aplasia/Hypoplasia of the proximal phalanx of the 5th fingerShort 5th fingerShort proximal phalanx of finger

Also called: Hypoplastic/small proximal phalanx of the 5th finger · Short innermost little finger bone · Short innermost pinky finger bone · Short proximal phalanx of the fifth finger

Short proximal phalanx of the 5th finger

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This 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.