A male 54 years-old patient with infective endocarditis through Staphylococcus aureus with prosthesis of Starr-Edwards aortic with clinical and echocardiographic signs compatible with dysfunction classified as severe. The x-ray images presented double silhouette of the prosthesis, thus suggesting its partial dehiscence. This case report points out that the detailed analysis of the X-ray may supply relevant data for the diagnosis of one of this complication thus influencing on management and prognosis