Question
Which of the following will be seen on cardiac biopsy of a patient who had a post MI reperfusion injury?
A. Waviness of fibres
B. Eosinophilic contraction bands
C. Neutrophils in cardiac cells
D. Swelling of cells
Show Answer
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Correct Answer » B Explanation |
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Ans: B. Eosinophilic contraction bands
Microscopically, irreversibly damaged myocytes subject to reperfusion show contraction band necrosis;
In this pathologic process, intense eosinophilic bands of hypercontracted sarcomeres are created by an influx of calcium across plasma membranes that enhances actin-myosin interactions.