Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiomegaly has improved . The mediastinal silhouette is normal . The bilateral lower lobe opacities have improved . There is small pleural effusion on the right that has improved from prior . The previously seen right apical pneumothorax has resolved . The left pectoral transvenous pacemaker is position with leads in the right atrium and right ventricle . The sternotomy wires are unchanged . No fractures .
    OUTPUT:
    
Improved bilateral lower lobe opacities and resolution of right apical pneumothorax . Persistent small right pleural effusion .