A dreadful sign of aortic dissection: aortic intimo-intimal intussusception with prominent intimal flap prolapsing into the left ventricular apex.

Intimo-intimal intussusception is an unusual clinical form of aortic dissection resulting from circumferential detachment of the intima. Clinical presentation varies according to the level of detached intima in the aorta. We present a case of acute type A dissection with prominent prolapse of the circumferential detachment intimal flap into the left ventricular cavity extended to the apex.