1. Cardiac Echinococcosis: Case Report of Unusual Echocardiographic Appearance 
Elizabeth Klodas, M.D., Veronique L. Roger, M.D., Fletcher A. Miller, M.D., James P. Utz, M.D., Gordon K. Danielson, M.D., William D. Edwards, M.D. 
Mayo Clinic Proceedings 
Volume 70, Issue 7, Pages (July 1995)
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2. Fig. 1
Multiplane transesophageal echocardiographic images of degenerated echinococcal cyst that manifested as mass (M) attached to ventricular septum (VS) and protruded into right ventricle (RV). A, Crystal array at 0°, horizontal plane, four-chamber image. Mass is located at midventricular level. Left ventricle (LV), left atrium (LA), and right atrium (RA) are nonmal. B, 120° view. Aorta (Ao) is imaged in long axis. In this diastolic frame, aortic valve is closed. Attachment of mass to ventricular septum, along broad base, is evident.
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3. Fig. 2
Surgical findings as visualized through tricuspid valve annulus. A, Mass appeared encapsulated and distinct from surrounding structures. B, Surgical removal was accomplished without perforation of capsule.
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4. Fig. 3
Pathologic features of resected right ventricular echinococcal cyst. A, Typical laminated appearance of cyst wall. (Hematoxylin-eosin; ×55.) B, Necrotic and mummified pale-staining helminths (arrows) between laminations of cyst wall. (Hematoxylineosin; x135.) C, Hooklets (arrows) within necrotic organism. (Acid-fast stain; x270.)
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5. Fig. 4
Typical two-dimensional echocardiographic appearance of cardiac echinococcal cyst (arrowheads). Note cystic nature of lesion and presence of multiple septa. AV = aortic valve; LA = left atrium; S = septum. (From Limacher and associates,9 By permission.)
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