Rare diseases · Sign or symptom

Aplasia/Hypoplasia of the middle phalanx of the 5th finger

Absent/small middle bone of pinky finger

HP:0009161

What it means

Absence or underdevelopment (hypoplasia) of the middle phalanx of the little (5th) finger.

Part of the broader category

Also called: Absent/hypoplastic middle phalanx of 5th finger · Absent/underdeveloped middle bone of little finger · Absent/underdeveloped middle bone of pinkie finger · Absent/underdeveloped middle bone of pinky finger

Aplasia/Hypoplasia of the middle phalanx…

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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.