Zhu Yan-Bo, Zhang Xiu-Hong, Wang Lian-Qun, Guan Xin
Division of Ultrasound, Tianjin Chest Hospital, Tianjin, China.
Echocardiography. 2015 Jan;32(1):174-7. doi: 10.1111/echo.12750. Epub 2014 Sep 24.
Fibrous cyst of the chordae tendineae of the mitral valve (MV) is defined as a fibrous cyst arising from the chordae tendineae of the MV. It is extremely rare and its etiology is not clear. We present a case of a cystic structure within the left ventricle. This structure is connected to the anterior MV leaflet and the posterior chordae tendineae. It moves freely, resulting in stenosis of inflow tract and outflow tract of the left ventricle. Intraoperative assessment and histopathologic examination revealed it as a fibrous cyst. Its echocardiographic appearance is unique and it must be resected immediately.
二尖瓣腱索纤维性囊肿是指起源于二尖瓣腱索的纤维性囊肿。它极为罕见，病因尚不明确。我们报告一例左心室内的囊性结构病例。该结构与二尖瓣前叶及后腱索相连。它可自由移动，导致左心室流入道和流出道狭窄。术中评估及组织病理学检查显示其为纤维性囊肿。其超声心动图表现独特，必须立即切除。
