Rare diseases · Sign or symptom

Abnormal lateral ventricle morphology

HP:0030047

What it means

A morphological anomaly of the lateral ventricle.

There are two lateral ventricles, one on each side of the brain. The lateral ventricle resembles a C-shaped structure that begins at an inferior horn in the temporal lobe, travels through a body in the parietal lobe and frontal lobe, and ultimately terminates at the interventricular foramen of Monro where each lateral ventricle connects to the central third ventricle.

Rare diseases that can present with this6

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: Abnormality of lateral ventricle

Abnormal lateral ventricle 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.