Dissection of the interventricular septum (IVS) is an extremely rare
entity. The patients with venticular septum dissection have been
reported before. Most cases were diagnosed with coronary artery disease,
Bechet’s disease or injury. However, we will report the case not linked
to them and treated by aortic valve repair. It may be the first case of
spontaneous contained aortic annulus rupture with dissection of IVS,
which was successfully treated by surgery.