Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right internal jugular central venous catheter terminates in the upper SVC . Median sternotomy wires appear intact . Pleural drains have been removed . Lung volumes remain low with bibasilar atelectasis . Moderate cardiomegaly is unchanged . Faint lucency along the left heart border is diminishing , likely reflecting resolving pneumopericardium . Mild interstitial pulmonary edema is improved . There is no large pleural effusion or pneumothorax .
    OUTPUT:
    
1 . Stable mild cardiomegaly with mild improved interstitial pulmonary edema . 2 . No pneumothorax . Resolving pneumopericardium .