ABPath Cardiovascular System Pathology 2

Question 1

Which finding is most characteristic of a 12-hour-old myocardial infarct on microscopy?

Accepted Answer

Coagulative necrosis with early neutrophil infiltration

Answer

Granulation tissue with fibroblasts

Answer

Dense collagenous scar

Answer

Wavy fibers and contraction band necrosis only

Question 2

A ruptured ventricular free wall after MI most commonly occurs at what time point?

Accepted Answer

3 to 7 days

Answer

Within 1 hour

Answer

6 to 8 weeks

Answer

6 months or later

Question 3

Aschoff bodies are pathognomonic of which condition?

Accepted Answer

Acute rheumatic fever

Answer

Infective endocarditis

Answer

Dilated cardiomyopathy

Answer

Cardiac amyloidosis

Question 4

Which valve is most frequently involved in chronic rheumatic heart disease?

Accepted Answer

Mitral

Answer

Pulmonic

Answer

Tricuspid

Answer

Aortic and tricuspid equally

Question 5

Large, friable vegetations that can embolize and destroy the valve suggest which type of endocarditis?

Accepted Answer

Acute infective endocarditis

Answer

Nonbacterial thrombotic (marantic)

Answer

Libman-Sacks

Answer

Rheumatic verrucae

Question 6

Contraction band necrosis is most characteristically associated with which mechanism?

Accepted Answer

Reperfusion injury and catecholamine excess

Answer

Chronic ischemia

Answer

Viral infection

Answer

Amyloid deposition

Question 7

Which cardiac enzyme/protein remains elevated longest after myocardial infarction?

Accepted Answer

Troponin I/T

Answer

CK-MB

Answer

Myoglobin

Answer

AST