Normal variants and benign conditions often misinterpreted as pathologic
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Normal variants and benign conditions often misinterpreted as pathologic

Table 1. Normal variants and benign conditions often misinterpreted as pathologic.

Right atrium Right ventricle
Chiari network Moderator band
Eustachian valve Muscle bundles/trabeculations
Crista terminalis Catheters and pacemaker leads
Catheters/pacemaker leads
Lipomatous hypertrophy of interatrial septum
Pectinate muscles
Fatty material (surrounding the tricuspid annulus)
Left atrium Left ventricle
Suture line following transplant False chords
Fossa ovalis Papillary muscles
Calcified mitral annulus Left ventricle trabeculations
Coronary sinus
Ridge between LUPV and LAA
Lipomatous hypertrophy of interatrial septum
Pectinate muscles
Transverse sinus
Aorta
Brachiocephalic vein
Innominate vein
Pleural effusion

LAA, left atrial appendages; LUPV, left upper pulmonary vein.

Reproduced with permission of Lippincott Williams & Wilkins from Feigenbaum et al. Feigenbaum’s echocardiography. 6th ed. Philadelphia, PA: Lippincott Williams & Wilkins; 2005. 701 (Table 21.1).

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