Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP frontal and lateral chest radiographs are obtained . Lungs are symmetric and well - expanded bilaterally . Cardiomediastinal silhouette is unchanged from the prior examination . Linear retrocardiac opacities are unchanged and likely represent scarring . Slightly more prominent streaky right lower lobe opacities could represent atelectasis ; however , consolidation can not be excluded . Mild prominence of central vasculature is unchanged . No large pleural effusion and no pneumothorax is seen .
    OUTPUT:
    
Slightly more prominent streaky right lower lobe densities likely represent atelectasis , but consolidation is not entirely excluded .