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Case Reports
. 2002 Jul;15(7):753-5.
doi: 10.1067/mje.2002.119163.

Prominent crista terminalis appearing as a right atrial mass on transthoracic echocardiogram

Jennifer R Pharr  1 , Michael B West, Fred M Kusumoto, Vincent M Figueredo
Affiliations
Case Reports

Prominent crista terminalis appearing as a right atrial mass on transthoracic echocardiogram

Jennifer R Pharr et al. J Am Soc Echocardiogr. 2002 Jul.

Abstract

The crista terminalis is a fibromuscular ridge formed by the junction of the sinus venosus and primitive right atrium. In these case reports, transthoracic echocardiography suggested the presence of a right atrial mass. However, subsequent transesophageal echocardiography revealed that the "right atrial mass" was actually a prominent crista terminalis. An understanding of the anatomy and the echocardiographic appearance of a prominent crista terminalis will minimize the misdiagnosis of this structure.

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