stroke

Question 1

occlusion of the artery of percheron causes what? and how?

Answer 1

Will cause bilateral thalamic strokes - drowsiness, opthalmoplegias. Occurs when an anatomic variant in artery of percheron results in bilateral supply of thalami from one side.

Question 2

What is Susac syndrome?

Answer 2

Susac syndrome is a small vessel vasculitis that commonly presents with a triad of hearing loss, visual changes (due to branch retinal artery occlusions) and encephalopathy.

Question 3

The finding of segmental constriction and multiple small aneurysms in a stroke patient is suggestive of what?

Answer 3

varicella zoster vasculopathy. The finding of an asymmetric vehicular rash is also suggestive of this cause.

Question 4

what is the link between lupus and stroke?

Answer 4

Lupus can cause CNS vasculitis, which can lead to stroke. It can also cause Libman sacks endocarditis which could cause a cardioembolic stroke. In addition to these, lupus is linked to antiphospholipid syndrome which can cause arterial clots and strokes

Question 5

occlusion of what artery will cause deafness

Answer 5

Anterior inferior cerebellar artery (AICA)