C  2006, the Authors Journal compilation C  2006, Blackwell Publishing, Inc. Cardiac Echinococcosis Stavros Kakouros, M.D., Nicholaos Kakouros, B.Sc., M.R.C.P., Manos Alchanatis, M.D., and Konstantinos Karydes, M.D. Cardiac Department, Athens Hospital for Chest Diseases, Athens, Greece (ECHOCARDIOGRAPHY, Volume 23, October 2006) Case 1 A 16-year-old boy was referred to our hospi- tal for investigation of cardiac involvement of hydatidosis which was known to be present in the liver and lungs. It must be noted that he had no heart symptoms. ECG showed nonspe- cific T-wave abnormalities in right precordial leads. A two-dimensional echocardiogram (2D- echo) showed a rounded echolucent mass in the middle portion of the interventricular septum protruding into both cardiac ventricles (Figs. 1 and 2), compatible with hydatid cyst (HC). Find- Funding sources none. Address for correspondence and reprint requests: Stavros Kakouros, M.D., Cardiac Department, Athens Hospital for Chest Diseases, 26 Paritsi Street, 15451, Athens, Greece. Fax: 0030-2106745117; E-mail: kakst@otenet.gr Figure 1. Two-dimensional echo- cardiography, parasternal long-axis view, illustrating a large hydatid cyst in the interventricular septum. ings of computer tomography (CT) were also suggestive of HC, which was securely removed surgically and proved to be hydatid. Case 2 A 56-year-old woman was referred to our hos- pital for investigation of a 2-week history of atypical chest pain, palpitations, and dyspnea. A 12-lead ECG showed diffuse abnormalities (ST depression and T wave inversion) in leads I, aVL, and V 1 –V 6 . The 2D-echo showed multi- ple cysts with honeycomb appearance within a dilated right ventricular (RV) cavity. The find- ings were prominent only from a slightly mod- ified four-chamber view (Fig. 3). RV and LV Doppler inflow patterns were normal. Patient’s symptoms may have been caused by the dilated RV, encroaching on the LV chamber. The 2D- echo diagnosis of cardiac HC was subsequently Vol. 23, No. 9, 2006 ECHOCARDIOGRAPHY: A Jrnl. of CV Ultrasound & Allied Tech. 807