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Chest x-ray of a pericardial effusion

Chest x-ray of a pericardial effusion
Cardiomegaly due to a massive pericardial effusion. At least 200 mL of pericardial fluid must accumulate before the cardiac silhouette enlarges.
Courtesy of Massimo Imazio, MD, FESC.
Graphic 57640 Version 3.0