Accessory “Pseudo” Left Atrium Confirmed by Cardiac Magnetic Resonance Imaging

Zahra Alizadeh Sani; Afsoon Fazlinezhad; Mohammad Vojdanparast; Shadi  Sarafan-Sadeghi; Azin  Seifi; Saeed  Mirsadraee; Behshid Ghadrdoost; Mohaddeseh Behjati

International Cardiovascular Research Journal

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Accessory “Pseudo” Left Atrium Confirmed by Cardiac Magnetic Resonance Imaging

Author(s):

Zahra Alizadeh Sani¹,

Afsoon Fazlinezhad²,

Mohammad Vojdanparast²,

Shadi Sarafan-Sadeghi³,

Azin Seifi³,

Saeed Mirsadraee⁴,

Behshid Ghadrdoost¹,

Mohaddeseh Behjati^5,*

1Rajaie Cardiovascular Medical and Research Centre, Iran University of Medical Sciences, Tehran, Iran

2Cardiovascular Research Center, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran

3Department of Medical Sciences, Mashhad Branch, Islamic Azad University, Mashhad, Iran

4University of Edinburgh, Little France Crescent, Edinburgh, United Kingdom

5Echocardiography Research Center, Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, Iran

International Cardiovascular Research Journal:Vol. 12, issue 3; e65047

Published online:Sep 01, 2018

Article type:Case Report

Received:Aug 29, 2018

Accepted:May 19, 2018

How to Cite:Alizadeh Sani Z, Fazlinezhad A, Vojdanparast M, Sarafan-Sadeghi S, Seifi A, et al. Accessory “Pseudo” Left Atrium Confirmed by Cardiac Magnetic Resonance Imaging.Int Cardiovasc Res J.2018;12(3):e65047.

Abstract

Accessory chamber is an extremely rare congenital abnormality, which is often detected as an incidental finding on echocardiography. We described a case of accessory pseudo Left Atrium (LA) firstly detected by echocardiography and confirmed by Cardiac Magnetic Resonance imaging (CMR). Case presentation- A 4-year-old girl referred to our center with recent fatigue and exertional dyspnea. A large accessory LA was clearly visible on transthoracic echocardiography. CMR demonstrated an isolated wide base round “auricle like” chamber with large pectinate muscles simulating bear’s paw. The accessory LA’s only connection was to the Left Ventricle (LV) through an orifice that functioned as a dysplastic valve at the level of Left Ventricular Outflow Tract (LVOT). This valve had severe regurgitation and stenosis with no papillary connection. Conclusion- This entity differs from cor-triatriatum of the LA because there is a superior-inferior septum between the two left-sided atria with no interatrial communication and no pulmonary venous drainage to the accessory chamber.

Keywords

Echocardiography

Magnetic Resonance Imaging

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Author(s):

Zahra Alizadeh Sani:[PubMed][Scholar]
Afsoon Fazlinezhad:[PubMed][Scholar]
Mohammad Vojdanparast:[PubMed][Scholar]
Shadi Sarafan-Sadeghi:[PubMed][Scholar]
Azin Seifi:[PubMed][Scholar]
Saeed Mirsadraee:[PubMed][Scholar]
Behshid Ghadrdoost:[PubMed][Scholar]
Mohaddeseh Behjati:[PubMed][Scholar]