Prenatal diagnosis of left ventricular aneurysm and diverticulum.

We report two cases of localized left ventricular (LV) protrusion, an entity that has been described in the literature as aneurysm or diverticulum. Both cases had different outcomes from those previously reported. Little is known on the incidence and natural history of these rare anomalies, whose progression may be asymptomatic or lead to severe complications and death in the prenatal period. The therapeutic approach should be customized.