Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single AP upright portable view of the chest was obtained . Since the prior study , there has been significant interval enlargement of now globular cardiac silhouette , raising concern for underlying pericardial effusion . There may be mild pulmonary vascular congestion without overt pulmonary edema . No definite focal consolidation is seen . The left costophrenic angle is not well seen , which may be due to overlying soft tissue , although a small pleural effusion is not excluded . No pneumothorax .
    OUTPUT:
    
Significant interval increase in size of cardiac silhouette which is globular in configuration , concerning for underlying pericardial effusion . Possible minimal - to - mild pulmonary vascular congestion without overt pulmonary edema . Slight blunting of the left costophrenic angle is most likely due to overlying soft tissue , although a trace pleural effusion is not excluded .