Cerebral proliferative angiopathy

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Cerebral proliferative angiopathy

ORPHA:692271Disease

Also called CPA · Diffuse nidus arteriovenous malformation · Holohemispheric giant cerebral arteriovenous malformation · Proliferative angiopathy

What it is

A rare arteriovenous malformation characterized by seizures, disabling headaches, and stroke-like symptoms with progressive neurological deficits due to a proliferative response to chronic parenchymal ischaemia. Normal brain parenchyma is interspersed throughout the vascular malformation. Hemorrhagic presentations are uncommon; however, when present, the risk of reccurence is higher in such patients than in those with classic cerebral arteriovenous malformation.

Key facts

Prevalence
1-9 / 1 000 000
Age of onset
Adolescent, Adult, Childhood
Inheritance
Unknown
Classified as
Disease

Prevalence figures describe populations, not individuals, and are often estimates from a single study. Where the figure is an incidence or a birth prevalence, it says so.

ICD-10 codes

Q28.2filed under a broader ICD-10 category — shared with 4 other rare diseases

ICD-10 has no distinct code for most rare diseases, so many are filed under the nearest available one. A shared code identifies the group, not this disease — the ORPHAcode above is what identifies it.

Related health topics

Reached through the ICD-10 categories this disease is filed under, so these describe the broader group rather than this disease specifically.

Orphadata Science: Free access data from Orphanet. © INSERM 1999. Data version 2026-06-23. Available under CC BY 4.0. This is a reference, not medical advice.

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