Calcification of the aortic valve illustrated in this photograph occurred because the aortic valve was
A. congenitally abnormal
B. damaged by hypertension
C. damaged by rheumatic fever
D. damaged by hypercalcemia
E. affected by Marfan's syndrome
A
This valve shows extensive dystrophic calcification involving a congenitally bicuspid valve. Bicuspid valves are more prone to distortion and trauma than the normal tricuspid valves and are thus more often prone to calcification than normal valves.
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