Rare diseases · Sign or symptom
Lower cranial nerve dysfunction
HP:0410262
What it means
A functional abnormality affecting the lower cranial nerves, which include the paired 9th (glossopharyngeal), 10th (vagal), 11th (accessory) and 12th (hypoglossal) cranial nerves.
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: Abnormal lower cranial nerve function
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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.