J Cardiovasc Ultrasound.  2013 Dec;21(4):186-188. 10.4250/jcu.2013.21.4.186.

Asymptomatic Myxoma Originating from the Right Ventricular Outflow Tract

• Kim DH
• Yi JE
• In HJ
• Jeong M
• Kim MS
• Lee JS
• Lee JH
• Kang B
• Jung HO
• Youn HJ

• KMID: 2135418
• DOI: http://doi.org/10.4250/jcu.2013.21.4.186

Abstract

Asymptomatic right ventricular outflow tract (RVOT) myxoma is quite rare. We report an unusual case of asymptomatic myxoma arising from the RVOT which was successfully surgically removed.

Keyword

Intracardiac myxoma; Right ventricle; Echocardiography

MeSH Terms

Echocardiography
Heart Ventricles
Myxoma*

Figure

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  Fig. 1 A: Pulmonary angio computed tomography (CT). CT shows a 2.4 × 1.4 cm sized mass in right ventricular outflow tract (RVOT) (white arrow). B: The mass was attached to the subvalvular infundibulum, extending into the RVOT (black arrow).

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  Fig. 2 Transthoracic echocardiography. Parasternal short axis view at the level of the aortic valve reveals a 24 × 17 mm sized myxoma (arrow). Ao: aorta, RA: right atrium, RV: right ventricle.

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  Fig. 3 Transesophageal echocardiography. Transesophageal view shows a mass in the right ventricular outflow tract attached to the infundibulum of the right ventricle (arrow). Ao: aorta, LA: left atrium, RA: right atrium, RV: right ventricle, RVOT: right ventricular outflow tract.

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  Fig. 4 A: Intraoperative view of the mass (arrow) seen after incising right atrium. B: The microscopic examination shows stellate and globular cells that are arranged in cord-like pattern with abundant myxoid background (H&E, × 400).

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