Left ventricular outflow tract obstruction due to a left ventricular myxoma that was misidentified as an accessory mitral valve tissue

• DOI: 10.21037/jtd.2017.03.45
• Publication Date: 2017-03-31T00:31:12Z
• Authors: Seung-Hoon Baek; Hee Young Kim; Hyae Jin Kim; Sang Wook Shin; Hye Jin Kim; Yun Mi Choi; Eun Ji Choi; Eunjung Chang; Hong-Sik Son
• Keywords: Ventricular outflow tract

We report obstruction of the left ventricle outflow tract (LVOT) caused by cardiac myxoma that was misidentified as an accessory mitral valve tissue preoperatively. A 65-year-old woman presented with chest discomfort persisted for 7 days. Transthoracic echocardiography (TTE) revealed a mobile, low-echogenic, balloon-shaped mass attached to anterior leaflet and papillary muscle, which suspected be tissue. Because LVOT it could result in hemodynamic instability, emergency operation performed. Intraoperative transesophageal (TEE) performed, had irregular margins pedunculated, stalk originating from (LV) wall extending lateral chordae valve. The surgeon excised filled myxomatous mass, yellowish gelatinous stiff stalk, histopathologic diagnosis confirmed myxoma. Although or LV myxomas are rare, TEE is useful tool distinguishing other intracardiac masses, such vegetation