Salam Abdus, Mubashir Mujtaba, Mubashir Hadika, Fatimi Saulat Hasnain
Medical College, Aga Khan University, Karachi, Pakistan.
Department of Cardiothoracic Surgery, Aga Khan University, Karachi, Pakistan.
BMJ Case Rep. 2017 Dec 13;2017:bcr-2017-222427. doi: 10.1136/bcr-2017-222427.
A 35-year-old man presented with a 3-month history of palpitations and shortness of breath. An ECG showed premature atrial contractions and episodes of supraventricular tachycardia. A subsequent echocardiogram showed a retrocardiac cystic mass that was compressing the left atrium. A CT scan confirmed these findings by showing a large left-sided posterior mediastinal cyst compressing the left atrium and pulmonary veins. The cyst was successfully excised from the retrocardiac position via left thoracotomy after which there was complete resolution of the palpitations. Histopathology showed it to be a mediastinal cyst, most likely a foregut duplication of the enterogenic variant. This is an extremely unusual case of foregut duplication cyst presenting with compression of the left atrium and pulmonary veins leading to atrial arrhythmias.
一名35岁男性，有3个月心悸和气短病史。心电图显示房性早搏和室上性心动过速发作。随后的超声心动图显示心脏后方有一个囊性肿块，压迫左心房。CT扫描证实了这些发现，显示左侧后纵隔有一个大囊肿，压迫左心房和肺静脉。通过左胸切开术成功地从心脏后方位置切除了囊肿，术后心悸完全缓解。组织病理学显示其为纵隔囊肿，很可能是肠源性变异的前肠重复畸形。这是一例极为罕见的前肠重复囊肿，表现为压迫左心房和肺静脉导致房性心律失常。
