Various pathological changes in the mitral valve apparatus have been reported to be associated with ruptured chordae tendineae. Myxomatous degeneration is one of the most common etiologies. The incidence of posterior chordal rupture is higher than that of anterior mitral leaflet. However, spontaneous rupture of both anterior and posterior chordae is very rare. Herein, we present a patient with severe mitral regurgitation due to bileaflet chordal rupture, evaluated by two-dimensional and real time three-dimensional transesophageal echocardiography.