Cardiac ecchinococcosis is a rare disease. Its incidence varies from 0.02-2%. Commonly seen in the left ventricle arising from the myocardium in the subepicardial region.We report a 15-year-old boy presented with a rare combination of a left ventricular subendocardial hydatid cyst associated with multiple cysts in the left cerebral hemisphere and right posterior occipital lobe. The patient underwent successful surgical excision of the left ventricular hydatid cyst using cardiopulmonary bypass.

Circumflex coronary arteriovenous fistula associated with aneurysmal dilatation and draining into coronary sinus (CS) is rare. A 57-year-old female presented with progressive dyspnea and was found to have a tortuous multiloculated aneurysm of the circumflex coronary artery terminating into the CS associated with a persistent left superior vena cava. The operative repair and management of coronary arteriovenous fistula are the subject of this case report and review.