Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A left pectoral pacemaker with single lead terminating in the right ventricle is unchanged . The patient is status post median sternotomy with multiple intact appearing wires . Mediastinal surgical clips are compatible with prior CABG surgery . The cardiac silhouette remains enlarged but stable . The right mediastinal contour is prominent in part related to unfolding of the thoracic aorta , which is unchanged . There is calcification of the aortic knob . There is decreased engorgement of the pulmonary vasculature and improved ground - glass opacities throughout the lungs suggesting resolving CHF . No significant pleural effusion or pneumothorax is detected .
    OUTPUT:
    
Resolving mild CHF .