Histology Review Flashcards
What is purulent pericarditis associated with?
infection
What is hemorrhagic pericarditis associated with?
trauma, infections such as TB / malignancy
What form of pericarditis is normally associated with uremia?
fibrinous pericarditis
Post-MI pericarditis is?
fibrinous pericarditis
What are Anitschkow cells and Aschoff bodies associated with?
rheumatic myocarditis
What histological finding is associated with transmural infarction?
dense fibrous tissue without inflammation
What causes eosinophilic myocarditis?
Drug reactions or infections like Chaga’s disease
What is acute bacterial endocarditis associated with?
systemic signs of infection
fever, chills, positive blood culture
Where do valvular vegetations localize in acute bacterial endocarditis?
“low flow” sides of valve
side before the valve (ex: MV develops vegetations on atrial side)
Marantic endocarditis is associated with
malignancy
Does MVP normally have vegetations?
no
just associated with myomatous degeneration of valve
What causes MVP?
myxomatous degeneration of valve
Mönckebergmedial calcific sclerosis
occurs in muscular media
doesn’t impinge on lumen
Cystic medial degeneration looks like …
lots of wavy lines on histology
What can cystic medial degeneration lead to?
thoracic / ascending aortic aneurysm
What causes descending aortic aneurysms?
atherosclerosis
What are 2 forms of arteriosclerosis ?
Hyaline
Hyperplastic
Hyaline arteriosclerosis looks like …
pink around the vessel (looks like pretty controlled ring)
What is the etiology of Hylaine arteriosclerosis?
HTN (mostly)
also DM
Hyperplastic arteriosclerosis looks like…
onion-skinning swirls
Hyperplastic arteriosclerosis is mostly caused by
HTN emergency
What can you see with coagulative necrosis post-MI?
dark pink contraction bands
also known as contractile band necrosis