Multiple choice

In mitral valve prolapse, the histological finding is:

  1. Hyalinization of the valve

  2. Fibrinoid necrosis

  3. Myxomatous degeneration of the valve

  4. None of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Mitral valve prolapse is pathologically characterized by myxomatous degeneration, where the valve leaflets become floppy and redundant due to accumulation of glycosaminoglycans in the connective tissue. This causes the valve to billow backward into the left atrium during systole. Hyalinization is seen in aging valves, while fibrinoid necrosis occurs in vasculitis.

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