A 47-year-old male presented to the emergency room after an episode of exertional syncope. He denied palpitations, incontinence, dyspnea, or any prior syncope. An ECG and serum cardiac enzymes were normal. A computed tomographic angiogram performed to rule out pulmonary embolism revealed an intracardiac mass in the ventricular septum, measuring 5.0×5.0×4.7 cm (Figure [A]). Subsequent transthoracic echocardiography demonstrated cavity obliteration of the right ventricle from the mass.

Intracardiac echinococcal cyst. A, Computed tomographic angiogram shows an intracardiac mass within the interventricular septum between the right …

中文翻译：

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导致心室双球囊腔闭塞的心内膜球菌囊肿

劳累性晕厥发作后，一名47岁的男性出现在急诊室。他否认心，大小便失禁，呼吸困难或任何先前的晕厥。心电图和血清心脏酶均正常。为排除肺栓塞而进行的计算机断层血管造影显示，室间隔内有一个心内块，大小为5.0×5.0×4.7 cm（图[A]）。随后的经胸超声心动图显示肿​​块使右心室腔闭塞。

心内棘球oc囊肿。 A，计算机断层血管造影显示右心室之间的室间隔内有心脏内包块。