Rare diseases · Sign or symptom
Abnormal cerebral vascular morphology
Abnormality of the cerebral blood vessels
HP:0100659
What it means
An anomaly of the cerebral blood vessels.
Rare diseases that can present with this23
Very common80–99%
7Common30–79%
8Sometimes5–29%
8- 3-methylcrotonyl-CoA carboxylase deficiency
- 3M syndrome
- Craniofaciofrontodigital syndrome
- Hereditary hemorrhagic telangiectasia
- Microcephalic osteodysplastic primordial dwarfism type II
- Severe hereditary thrombophilia due to congenital protein C deficiency
- Severe hereditary thrombophilia due to congenital protein S deficiency
- Werner syndrome
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 cerebral vasculature
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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.