Figure legends
Figure 1. A , Four chambers section of apex in transthoracic echocardiography image. An echocardiography demonstrated a weak-echo nodule located at the myocardium of the right ventricular apex (arrowhead). B , Cardiac hydatid cyst in CT image. A contrast-enhanced CT revealed a soft-tissue nodule within the interventricular septum near right ventricular apex without significant enhancement (arrowhead). C , Cardiac hydatid in MRI image. A contrast-enhanced MRI demonstrated no significant enhancement of the mass (arrow), while myocardium was significantly enhanced. D , Pathological image of excisional hydatid cyst (H&E, arrow).