Dissolution of intracardiac mass lesions in the primary antiphospholipid antibody syndrome.

The antiphospholipid antibody syndrome has numerous cardiac manifestations, including valvular thickening, insufficiency, and mass lesions. The mass lesions may be confused with atrial myxomas and other vegetations, sometimes necessitating a surgical diagnosis. There are no prospective studies on treatment or follow-up of intracardiac lesions in antiphospholipid antibody syndrome.