A tiny outpouching aneurysm usually found in the cerebrum and splanchnic arteries is called what?

A tiny outpouching aneurysm usually found in the cerebrum and splanchnic arteries is called what?

• A. Saccular
• B. Berry
• C. Fusiform
• D. Mycotic

Answer: (B)

A tiny sac-like dilation at a vessel branch is a saccular aneurysm, and when it has a rounded, berry-like appearance, it’s called a berry aneurysm. This term is classically used for small, sac-shaped aneurysms in cerebral arteries at bifurcations of the circle of Willis. The brain is the familiar setting for these lesions, and the nickname “berry” comes from the way the pouch looks on gross and radiologic exam. This contrasts with fusiform aneurysms, which are elongated dilations that involve a segment of the vessel circumference, and with mycotic aneurysms, which are infected. So the best answer is the berry aneurysm because it specifically describes the small, sac-like dilation at cerebral arteries.

A tiny sac-like dilation at a vessel branch is a saccular aneurysm, and when it has a rounded, berry-like appearance, it’s called a berry aneurysm. This term is classically used for small, sac-shaped aneurysms in cerebral arteries at bifurcations of the circle of Willis. The brain is the familiar setting for these lesions, and the nickname “berry” comes from the way the pouch looks on gross and radiologic exam.

This contrasts with fusiform aneurysms, which are elongated dilations that involve a segment of the vessel circumference, and with mycotic aneurysms, which are infected. So the best answer is the berry aneurysm because it specifically describes the small, sac-like dilation at cerebral arteries.