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Case Reports
. 2011 Sep;19(3):156-8.
doi: 10.4250/jcu.2011.19.3.156. Epub 2011 Sep 30.

Prominent crista terminalis in patients with embolic events

Jin Oh Na  1 , Eung Ju Kim, Sun Joung Mun, Eun Hee Choi, Jin Hee Mun, Hye Ra Lee, Yun Kyung Kim, Hwan Seok Yong
Affiliations
Case Reports

Prominent crista terminalis in patients with embolic events

Jin Oh Na et al. J Cardiovasc Ultrasound. 2011 Sep.

Abstract

A prominent crista terminalis is a normal anatomic variant which consist of thick muscular bridge within the right atrium. However, it could be often misdiagnosed with an abnormal mass on the transthoracic echocardiography. The case report presented here, describe the findings of transthoracic echocardiography that suggested a right atrial mass in patients with pulmonary embolism. However, subsequent transesophageal echocardiography and cardiac computed tomography/magnetic resonance imaging differentiated a true right atrial mass from a prominent crista terminalis.

Keywords: Crista terminalis; Right atrial mass.

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Figures

Fig. 1
Fig. 1
Transthoracic echocardiogram reveals an echogenic non-mobile mass in the right atrium. LA: left atrium, LV: left ventricle, RA: right atrium, RV: right ventricle.
Fig. 2
Fig. 2
Transesophageal echocardiogram shows a prominent crista terminalis at the superior part of right atrium close to superior vena cava. LA: left atrium, pCT: prominent crista terminalis, RA: right atrium, SVC: superior vena cava.
Fig. 3
Fig. 3
A very large pulmonary embolism is seen in the right pulmonary artery.
Fig. 4
Fig. 4
Chest computed tomography (CT) (A and B) and magnetic resonance imaging (C) reveal a prominent crista terminalis without any definite mass in the right atrium. Eso: esophagus, LA: left atrium, pCT: prominent crista terminalis, RA: right atrium, SVC: superior vena cava.
See this image and copyright information in PMC

References

    1. Meier RA, Hartnell GG. MRI of right atrial pseudomass: is it really a diagnostic problem? J Comput Assist Tomogr. 1994;18:398–401. - PubMed
    1. Pharr JR, West MB, Kusumoto FM, Figueredo VM. Prominent crista terminalis appearing as a right atrial mass on transthoracic echocardiogram. J Am Soc Echocardiogr. 2002;15:753–755. - PubMed
    1. Pharr JR, Figueredo VM. Lipomatus hypertrophy of the atrial septum and prominent crista terminalis appearing as a right atrial mass. Eur J Echocardiogr. 2002;3:159–161. - PubMed
    1. McKay T, Thomas L. Prominent crista terminalis and Eustachian ridge in the right atrium: two dimensional (2D) and three dimensional (3D) imaging. Eur J Echocardiogr. 2007;8:288–291. - PubMed
    1. Gaudio C, Di Michele S, Cera M, Nguyen BL, Pannarale G, Alessandri N. Prominent crista terminalis mimicking a right atrial mixoma: cardiac magnetic resonance aspects. Eur Rev Med Pharmacol Sci. 2004;8:165–168. - PubMed

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