Rare diseases · Sign or symptom
Abnormal oligodendroglia morphology
HP:0100706
What it means
One of the three types of glia cells that, with the nerve cells, compose the central nervous system and are characterized by sheetlike processes that wrap around individual axons to form the myelin sheath of nerve fibers.
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: Abnormality of the oligodendroglia
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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.