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Possible causes of an enlarged heart
Ask the doctor
Q. I had a chest x-ray recently because of suspected pneumonia and it showed that my heart is enlarged. What are the possible causes?
A. A heart that’s bigger than normal, known as cardiomegaly, has many possible causes. Endurance athletes, such as competitive runners and cyclists, may have hearts that have grown larger and more efficient as a natural response to all that intensive exercise.
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