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Myxoma Tumors of the Heart
Topic Overview
In rare cases, a tumor (myxoma) growing on the valve surface or in the left atrium of the heart can cause a blockage of the mitral valve that is similar to Reference mitral valve stenosis Opens New Window. Myxomas are tumors of connective tissue. They can occur almost anywhere in the body and can become quite large. When they occur, they can either block the valve opening or restrict the movement of the valve and prevent it from opening completely.
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