Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest were provided . Midline sternotomy wires are again noted . There is a tiny left pleural effusion accounting for a blunted appearance posteriorly on the lateral projection . The heart size is top normal . No focal consolidation or signs of pulmonary edema . There is no pneumothorax . The mediastinal contour is stable . Bony structures are intact . No free air below the right hemidiaphragm .
    OUTPUT:
    
Small left pleural effusion . Top normal heart size . Please refer to same day chest CT for further details .