Definition of Berry aneurysm

Berry aneurysm: A small aneurysm that looks like a berry and classically occurs at the point at which a cerebral artery departs from the circular artery (the circle of Willis) at the base of the brain. Berry aneurysms frequently rupture and bleed.

Last Editorial Review: 3/30/2012

Dementia Pictures Slideshow: Disorders of the Brain

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