Rare diseases · Sign or symptom

Abnormal hippocampus morphology

HP:0025100

What it means

Any structural anomaly of the hippocampus,

The term hippocampus is often used synonymously with hippocampal formation which consists of the hippocampus proper or Cornu Ammonis, the dentate gyrus and the subiculum.

Rare diseases that can present with this9

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

Also called: Abnormal morphology of the hippocampus · Abnormality of hippocampus morphology

Abnormal hippocampus morphology

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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.