Rare diseases · Sign or symptom
Sclerosis of skull base
Dense bone of skull base
HP:0002694
What it means
Increased bone density of the skull base without significant changes in bony contour.
Rare diseases that can present with this6
Common30–79%
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: HyperCalcification of skull base · HyperMineralization of skull base · Hyperossification of skull base · Hyperostosis of skull base · Marked sclerosis of skull base · Sclerosis of cranial base · Sclerosis of the skull base · Sclerotic skull base
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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.