Cardiac myxoma

Cardiac myxoma is the most common true tumor originating within the cardiac chambers. It is generally considered benign, with some complex manifestations and malignant potential, although some believe it is a true tumor of low malignancy. Most cardiac myxomas have a pedicle and can occur in any cardiac chamber, most commonly in the left atrium, accounting for about 75%. Most tumors are attached to the atrial wall by a pedicle, and 90% of left atrial myxomas are attached to the fossa ovalis of the interatrial septum. The tumor may move with cardiac contraction and relaxation. The vast majority are solitary tumors, but they may also be multiple and often have a familial hereditary tendency.