Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP upright and lateral views of the chest provided . Lung volumes are low limiting assessment . There is mild hilar congestion with possible mild interstitial edema . No large effusion or pneumothorax . No convincing evidence for pneumonia . Overall cardiomediastinal silhouette is stable . Bony structures are intact . No free air below the right hemidiaphragm .
    OUTPUT:
    
Hilar congestion with possible mild interstitial edema . Limited due to low lung volumes .