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Pericardial cyst in a 54-year-old woman with chest positional chest tightness and dyspnea. (a) Subcostal view showing an echolucent space adjacent to the right cardiac border (arrow). (b) Gross pathology right cardiophrenic pericardial cyst, 6.6 × 5.7 × 2.5 cm, uninoculated and serous fluid filled the benign mass.
