We report two cases of congenital atresia of the ostium of the left coronary artery. Case 1: a six-month-old infant presenting with serious cardiac insufficiency. A noninvasive diagnosis of dilated myocardiopathy was established and the clinical picture was pharmacologically compensated. https://www.ealisboa.com/flash-pick-OO9406-Transparent-Prizm-Sapphire-XL-deal-zone/