ty -jour a2 -Mariscalco，Giovanni au -Karazanishvili，Levan au -Limonjiani，Eduard PY -2020 DA -2020/2020/12/08 ti-可以迅速从零增长，从零增长到左侧的9次大小，导致左侧的心脏衰竭，几个月？SP -4241204 VL -2020 AB-恶性心脏肿瘤极为罕见，仅占所有心脏肿瘤的25％，而血管肉瘤是最常见的亚型。粘纤维肉瘤是心脏恶性肿瘤最稀有的形式之一。这些肿瘤可以静静地生长，不会产生或很少的症状，直到肿瘤足够大以阻塞血液。如果可能的话，确定的治疗方法是负缘切除率。大多数心脏肿瘤对化学疗法和放疗的反应有限。因此，手术治疗被认为是最佳选择。我们的患者是一名57岁的高加索后绝经女性，患有呼吸困难，呼吸急促和疲劳。超声心动图证实左心房存在质量。 A median sternotomy was performed with aortic and bicaval cannulation. Right atriotomy was performed, and the left atrium was exposed through the transseptal approach. A rounded smooth-surfaced mass was found in the left atrium that was 3.5 × 4.5  cm in size. The mass had a prominent and firm attachment point with a wide-based stalk in the pulmonary vein-right atrium border area. The tumor was completely excised, and the excision point was strengthened with a running suture. The following pathologic diagnosis was finally made: myxofibrosarcoma, FNCLCC (National Federation of Cancer Centres) Grade 2. Immunohistochemistry showed positivity for Epithelial membrane antigen ( EMA），Desmin，Calretinin，ki67，平滑肌肌动蛋白（ SMA）和S100。鉴于心脏恶性肿瘤的稀有性，我们术前认为这种特殊的肿瘤可能是粘液瘤，尽管它没有经典的附着点，并在子宫间隔膜上有茎。我们的案例是心脏肉瘤能够生长的速度的一个例子。演讲前九个月，患者进行了超声心动图，没有显示出任何肿瘤生长的迹象。估计的增长时间为9个月或更短的时间。我们跟随我们的患者，在手术后1个月进行计算机断层扫描和超声心动图，并且没有显示出任何肿瘤生长的迹象。SN -2090-6900 UR -https：//doi.org/10.1155/2020/4241204 do -10.1155/2020/4241204 JF-手术中的病例报告