Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single frontal view of the chest . Relatively low lung volumes are seen . There is increased hazy opacity in the right lung . Blunting of the bilateral costophrenic angles is identified as well as more dense retrocardiac opacity silhouetting the medial hemidiaphragm . Cardiomediastinal silhouette is top - normal in size for technique and inspiratory effort . No acute osseous abnormalities identified .
    OUTPUT:
    
Hazy opacity throughout the right lung and in the retrocardiac region which could represent infection . Repeat PA and lateral films may help further characterize . Blunting of the costophrenic angles may be due to component of effusions .