Abstract：
The mitral subvalvular apparatus can exhibit complex and unique anatomical variations. Accessory mitral valve chordae (AMVC) typically present as additional thin strands in the left ventricle. Their appearance in the atrium is rare. In the clinical case described, the AMVC was an incidental and intriguing finding during a routine transthoracic echocardiography.
摘要：
二尖瓣瓣膜下装置可以表现出复杂和独特的解剖学变化。附件二尖瓣腱索(AMVC)通常在左心室中以额外的细线存在。它们在中庭的出现很少见。在描述的临床病例中，在常规经胸超声心动图检查中,AMVC是偶然发现的有趣发现.
