Enlargement of cardiac silhouette due to pericardial effusion

Enlargement of cardiac silhouette due to pericardial effusion

Enlargement of cardiac silhouette due to pericardial effusion
Enlargement of cardiac silhouette due to pericardial effusion

The best evidence that the enlargement of the cardiac silhouette is due pericardial effusion is the demonstration of serial change [either increase or decrease (with treatment)]. The image below demonstrates a smaller cardiac silhouette after clearance of pericardial effusion which was documented by echocardigraphy.

CXR after treatment of pericardial effusion
CXR after treatment of pericardial effusion