Growth rate of left atrial myxoma. Development of a symptomatic left atrial myxoma less than two years after coronary artery bypass grafting.

In April 1984, a left atrial myxoma almost filling the left ventricle was discovered in a patient who had no evidence of myxoma at the time of aortocoronary bypass grafting in September 1982. We conclude that the growth rate of a primary cardiac myxoma may be much faster than expected from previous observations.