J Cardiovasc Imaging.  2020 Jan;28(1):63-66. 10.4250/jcvi.2019.0075.

Cardiac Mass: Left Atrial Myxoma

• Fontes Oliveira M
• Rodrigues
• Silveira I
• Cabral S
• Torres S

• KMID: 2468383
• DOI: http://doi.org/10.4250/jcvi.2019.0075

Abstract

No abstract available.

MeSH Terms

Myxoma*

Figure

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  Figure 1 Transthoracic echocardiogram. (A) Parasternal long-axis view demonstrating a moving mass in the LA. (B) Parasternal short-axis view showing the LA mass, which had irregular edges and appeared adherent to the interatrial septum / posterior wall of the LA. Ao: aorta, LA: left atrium, LV: left ventricle, RA: right atrium, RV: right ventricle, RVOT: right ventricle outflow tract.

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  Figure 2 Transesophageal echocardiogram (midesophageal 2 chamber view). Large and very mobile mass, non-pediculated with a large, 1.4-cm base, located just above the mitral annulus. During atrial systole, this mass exhibited slight protrusion into the mitral valve, not exceeding the valvular coaptation plan, causing no obstruction nor significant regurgitation. LA: left atrium, LAA: left atrium appendage, LV: left ventricle.

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  Figure 3 Transesophageal echocardiogram (two chamber view) showing the LA with a friable and very mobile mass just above the mitral anulus on the left, and on the right image with 90º rotation, showing its location at the transition between the LA posterior wall and interatrial septum. IAS: inter-atrium septum, LA: left atrium, LV: left ventricle, RA: right atrium.

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  Figure 4 Cardiac MRI. (A) Cine image SSFP sequence of the left atrial mass. (B) High-intensity signal on the fluid-sensitive sequence (T2 STIR). (C) High-intensity signal on the fat-suppressed image. (D) Left atrial mass with heterogeneous mild late contrast enhancement. SSFP: steady-state free precession, T2 STIR: short inversion time inversion recovery.

Reference

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3. Saji T, Yanagawa E, Matsuura H, et al. Increased serum interleukin-6 in cardiac myxoma. Am Heart J. 1991; 122:579–580.