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Trait

Indentation in back of outer ear

Clinical name: Posterior helix pit

Permanent indentation on the posteromedial aspect of the helix that may be sharply or indistinctly delineated.

HPO HP:0008523

Summary

Also called
Ear, posterior helical groove, Ear, posterior helical notch, Helix, posterior pit, Pits in posterior aspect of ear helices
Body system
Abnormality of the ear

7 genes linked to Indentation in back of outer ear

Changes in these genes cause rare conditions in which Indentation in back of outer ear is seen. Most people with this trait have none of those conditions, and a gene on this list says nothing about anyone's own genome.

GeneHow often it is seenConditions
SLC32A1solute carrier family 32 member 1Sometimes (5–29%)In 1 condition
CDKN1Ccyclin dependent kinase inhibitor 1CNot recordedIn 1 condition
EP300EP300 lysine acetyltransferaseNot recordedIn 1 condition
GPC3glypican 3Not recordedIn 1 condition
IGF2insulin like growth factor 2Not recordedIn 1 condition
KCNQ1potassium voltage-gated channel subfamily Q member 1Not recordedIn 1 condition
KCNQ1OT1KCNQ1 opposite strand/antisense transcript 1Not recordedIn 1 condition

How often is among people with one of the gene's conditions, the most often across them, as the Human Phenotype Ontology records it. These pages describe traits and the research behind them; they are not a diagnosis, and a doctor or genetic counsellor is the person to ask about symptoms.

Broader traits

Abnormal helix morphology

Where this comes from

  • The Human Phenotype Ontology, release 2026-09-01: the trait, its names, its definition and the genes linked to it. Find out more at hpo.jax.org.
  • Data release 2026.10.16-c6eea6bf.

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