Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single portable AP upright view of the chest was reviewed and compared to the prior . Diffuse opacity in the left lower lobe and a rounded opacity measuring 7 mm in the left lower lobe may represent atelectasis , however , ___ years ago on an abdominal CT , nodular opacity in the lingula and left lower lobe were present . Median sternotomy wires and multiple surgical clips projecting over the cardiac and mediastinal silhouettes is indicative of prior CABG . The fourth sternotomy wire is fractured on the left side , however , it is unchanged since ___ and there are no new breaks and alignment is maintained . A right - sided hemodialysis catheter ends in the lower superior vena cava . The heart and mediastinal contours are normal . There is no pleural effusion or pneumothorax . There is mild vascular congestion more prominent in the upper lungs . Linear radiolucencies in the right hemithorax correspond to skin folds .
    OUTPUT:
    
1 . Linear opacity and 7 mm rounded opacity in the left lower lung may represent atelectasis but on abdominal CT performed ___ years ago nodular opacities were present in the lingula and left lower lobe . Chest CT is recommended to document stability of these opacities . 2 . Mild vascular congestion more prominent in the upper lungs .