Diverticule congénital isolé du ventricule gauche découvert à l’âge adulte : apport de l’imagerie

Cardiac diverticulum is an infrequent congenital malformation, it's even more rare in adulthood. It's often associated with other thoraco-abdominal diverticulums, and rarely isolated. The diagnosis relies on echocardiography. By the way, the magnetic resonance imagery (MRI) allows a finer analysis of the diverticulum, its topography and its situation contributed to vascular and cardiac structures, it has largely replaced the ventriculography. We report in this article the case of a patient of 36 years whose diagnosis of the diverticulum was made by transthoracic echocardiography (TTE) at the time of an assessment of dyspnea, this exam also objectified a mitral insufficiency by deformation and dilatation of the mitral annulus. Radiological assessment was completed by a transoesophageal echocardiography (TOE) and magnetic resonance imagery (MRI). Surgical treatment consisted of surgical closing of the diverticulum and mitral annuloplasty.