Berry aneurysm
Berry aneurysms:
- are localised, dilatations of an intracranial artery
- are common, affecting approximately 5% of the population (1)
- mostly remain asymptomatic throughout life
- vary in size, most symptomatic aneurysms are >1 cm (1)
- often occur at vessel bifurcations
- cause 80% of subarachnoid haemorrhages (2)
- are multiple in 20-30% of patients (2)
Reference:
- Venning M, (1981), BMJ, 2, 824.
- Pope F, (1981), Lancet, 2, 973.
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