Carney's syndrome: complex myxomas. Report of four cases and review of the literature.

Cardiac myxomas are rare tumors. They usually appear as a sporadic isolated condition in the left atrium of middle-aged women with no other coincidental pathology. Carney and others have described in young people a special complex group of cardiac myxomas associated to a distinctive complex pathology, giving identity to the "Syndrome Myxoma" or "Carney's Syndrome".