Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest demonstrate streaky opacities in the bilateral lung bases , consistent with atelectasis . No pleural effusion , pulmonary edema , pneumothorax or definite focal pneumonia is identified . The lung volumes are somewhat low . The cardiomediastinal silhouette is unremarkable . A left clavicular fracture is again seen and unchanged since the prior study . No new fractures are identified .
    OUTPUT:
    
Bibasilar atelectasis with no definite evidence of pneumonia . Left clavicular fracture is unchanged .