Isolated Cardiac Hydatid Cyst Causing Complete Heart Block

Cardiac hydatidosis is an unusual disease and the interventricular septum is infrequently involved. It can cause various complications because of rupture and embolization. Interventricular septal cysts, may in rare conditions, induce symptoms corresponding to compression of the conduction pathway such as atrioventricular block. In this report, we present an uncommon case of cardiac echinococcus located in the basal part of the interventricular septum presenting as complete heart block managed by medical treatment and implantation of a permanent pacemaker.