OP & pathologic findings: - 7x5x2 cm sized cystic mass - 2 mm in average thickness - Composed of unilocular cyst, containing serous clear fluid - No communication with pericardial cavity
Characteristic location -
right cardiophrenic angle (65%) - left cardiophrenic angle (25%) Usually diagnostic of their cystic nature Low CT number, but possible high CT number Not always round
