Özet:

Mediastinal cysts are uncommon and results from congenital, neoblastic or inflamatuar abnormalities. Pericardial cyst may occur in patients of all ages, but commonly present in adults. The overall incidence of pericardial cyst is 7% in mediastinal cysts. The clinical presentation is commonly asymtomatic. Pain, tachpnea, dsypne and cough is the most common symptoms. Tachycardie, hypotansion, arytmi and sudden death are usually because of cardiac compression by the cystic mass.They are commonly found incidentally upon chest radiography, computed tomography or echocardiograph. We present, herein, the case of a 35-year-old female with a symptoms of dsypne, hypotansion and atrial arrhythmia resistant to medical therapies with finding of a pericardial cyst compression to the lateral wall of the right atrium.

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