Medical MCQ - A 74-year-old woman presents with acute chest pain and shoness of breath. Cardiac catheterization demonstrates occlusion of the left anterior descending coronary aery. Laboratory studies and ECG are consistent with acute myocardial infarction. Which of the following is the most likely pathological finding in the affected hea muscle 4 weeks later?

A 74-year-old woman presents with acute chest pain and shoness of breath. Cardiac catheterization demonstrates occlusion of the left anterior descending coronary aery. Laboratory studies and ECG are consistent with acute myocardial infarction. Which of the following is the most likely pathological finding in the affected hea muscle 4 weeks later?

Capillary-rich granulation tissue

Collagen-rich scar tissue

Granulomatous inflammation

Neutrophils and necrotic debris

Question Category:

Pathology

Correct Answer:

Collagen-rich scar tissue

Description:

Pathologic findings in congestive hea failure include:- Change Time Microscopic signs of coagulative necrosis 24 hours after the onset of vascular occlusion PMNL and marophages 3-5 days from the time of injury Capillary rich granulation tissue 7 days or end of first week Collagen rich scar tisssue(necrotic myocardium is replaced) weeks-months Diagnosis: Myocardial infarction

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