Histo/cyt path

Question 1

If you get a zoomed in image of the aortic valve and mitral valve with endocarditis how do you tell where you are?

Answer 1

Because the valves are in fibrous continuity. Mitral will have cords, and if there is endocarditis, the infection will be on top of the valve. Aorta will not have cords and the bottom of the valve will have endocarditis plaques

Question 2

if there is a communication between the right atrium and aorta what are your differentials

Answer 2

gerbode
endocarditis
ruptured aneurysm

Question 3

What does Brown and Bren stain

Answer 3

Tells Gram + appart from -, with purple/blue staining blue positive and pink was -
This is a type of gram stain

Question 4

How does collagen stain on H&E?

Answer 4

dark pink/purple-ish