Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided . Dual lead pacemaker is unchanged though right ventricular lead tip is not imaged . Midline sternotomy wires and mediastinal clips again noted . There is mild pulmonary edema . Low lung volumes somewhat limit the assessment . There is a small left pleural effusion noted . No pneumothorax . Heart size is stable and appears mildly enlarged . Mediastinal contour is unremarkable . Hilar engorgement is noted . Bony structures are intact .
    OUTPUT:
    
Mild cardiomegaly , mild edema and small left pleural effusion .