Rare diseases · Sign or symptom
Bicoronal synostosis
HP:0011318
What it means
Synostosis affecting the right and the left coronal suture.
Rare diseases that can present with this1
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: Bilateral coronal craniosynostosis · Bilateral coronal suture craniosynostosis · Bilateral coronal suture synostosis
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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.