Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is crowding of the pulmonary vasculature with mild engorgement , consistent with mild pulmonary congestion . Focal opacity at the lung bases seen on the lateral projection is most likely atelectasis ; however , infection can not be excluded . There is blunting of the costophrenic angles bilaterally likely due to small pleural effusions . The cardiomediastinal silhouette is top normal . Left chest wall pacemaker is seen with lead in the right ventricle . Median sternotomy wires are intact . Osseous structures are unremarkable .
    OUTPUT:
    
1 . Mild pulmonary edema and possible small bilateral pleural effusions . 2 . Focal basilar opacity is likely atelectasis ; however , infection can not be excluded .