Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single portable view of the chest . The lungs are hyperinflated . Linear bibasilar opacities are seen most suggestive of atelectasis or scar . There is blunting of the costophrenic angles potentially due to technique and overlying soft tissues although small effusions are also possible . Superiorly , the lungs are clear of consolidation . There is no pulmonary vascular congestion . The cardiac silhouette is enlarged but stable in configuration . Calcifications along the left aspect of the mediastinum , atherosclerotic in nature . No acute osseous abnormalities detected .
    OUTPUT:
    
Hyperinflation with linear bibasilar opacities thought to be scarring or atelectasis . Blunting of the costophrenic angles potentially technical or due to overlying soft tissues noting small effusions are also possible . If desired , a repeat with PA and lateral can be performed .