Rare diseases · Sign or symptom
Partial agenesis of the corpus callosum
HP:0001338
What it means
A partial failure of the development of the corpus callosum.
Rare diseases that can present with this14
Very common80–99%
4Common30–79%
4The 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: Corpus callosum agenesis, partial · Partial agenesis of corpus callosum · Partial corpus callosum agenesis · Partial or complete agenesis of corpus callosum · Partial or complete agenesis of the corpus callosum · Partial to complete agenesis of corpus callosum · Partial-total agenesis of corpus callosum
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Start free with EleplanThis 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.