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Case Reports
. 2018 Jul-Dec;20(3):1-4.

Prominent Crista Terminalis in a Fetus

Y D Evong  1 , A E Warren  1 , H Mohsin  1
Affiliations
Case Reports

Prominent Crista Terminalis in a Fetus

Y D Evong et al. Images Paediatr Cardiol. 2018 Jul-Dec.

Abstract

Background: The crista terminalis is a normal cardiac structure located in the right atrium. It is not usually seen using standard view transthoracic echocardiography techniques, but on occasion, hypertrophy allows for easy visualization of this structure, which can be mistakenly labelled pathologic.

Case: We report the first known case of a prominent crista terminalis detected in a fetus.

Conclusions: This case confirms the presence of a prominent crista terminalis in a developing fetus, a variant which was exclusively described in the pediatric and adult populations until now. Although a prominent crista terminalis is a benign variant, the correct identification of this structure has important diagnostic implications. This report aims to increase familiarity with the appearance of a prominent crista terminalis on both fetal echocardiography and newborn transthoracic echocardiography in hopes that this will aid in the correct diagnosis of this variant in the future.

Keywords: Prominent crista terminalis; echocardiogram; fetus; right atrial mass.

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Figures

Figure 1
Figure 1
Fetal echocardiography conducted at 29 weeks gestation. Apical 4-chamber view showing an echogenic focus extending from the posterolateral wall of the right atrium suggestive of prominent crista terminalis. PCT – Prominent Crista Terminalis, RA – Right Atrium, LA – Left Atrium, RV – Right Ventricle, LV – Left Ventricle.
Figure 2
Figure 2
Fetal echocardiography conducted at 29 weeks gestation. Transverse 4-chamber view showing an echogenic focus extending from the posterolateral wall of the right atrium suggestive of prominent crista terminalis. PCT – Prominent Crista Terminalis, RA – Right Atrium, LA – Left Atrium, RV – Right Ventricle, LV – Left Ventricle.
Figure 3
Figure 3
Transthoracic echocardiogram of infant. Subcostal apical view showing prominent crista terminalis. PCT – Prominent Crista Terminalis, RA – Right Atrium, LA – Left Atrium, RV – Right Ventricle, LV – Left Ventricle.
Figure 4
Figure 4
Transthoracic echocardiogram of infant. Subcostal left anterior oblique view showing prominent crista terminalis. PCT – Prominent Crista Terminalis, RA – Right Atrium, LA – Left Atrium.
See this image and copyright information in PMC

References

    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(4):288-291 - PubMed
    1. Salustri A, Bakir S, Sana A, Lange P, Al Mahameed WA. Prominent crista terminalis mimicking a right atrial mass: case report. Cardiovascular Ultrasound 2010;8(1):47. - PMC - PubMed
    1. Salim H, Palit A, Maher A. When a mass is not a mass? An unusual presentation of prominent crista terminalis. BMJ Case Rep [Internet]. 2016. February [cited 2018 Dec]; 2016. Available from: https://casereports.bmj.com/content/2016/bcr-2015-211532 / Subscription required. - PMC - PubMed
    1. Perez-Munuzuri A, Farina S, Bana-Souto A, Lopez-Suarez O, Couce-Pico ML. Prominent crista terminalis in the neonatal period. Klin Padiatr 2015;227(2):96-97 - PubMed
    1. Na JO, Kim EJ, Mun SJ, Choi EH, Mun JH, Lee HR, Kim YK, Yong HS. Prominent crista terminalis in patients with embolic events. J Cardiovasc Ultrasound 2011; 19(3):156-158 - PMC - PubMed

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