Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest are provided . Mild streaky bronchovascular lower lung opacities could represent crowding of bronchovasculature , though an atypical infection is difficult to exclude . No large effusion or pneumothorax . No frank signs of congestive heart failure . Cardiomediastinal silhouette is normal . Bony structures appear intact . Mild bilateral AC joint arthropathy is noted .
    OUTPUT:
    
Bilateral streaky lower lobe opacities which could , in the right clinical setting , represent an atypical pneumonia .