Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There low lung volumes . Perihilar and bibasilar opacities more likely reflect interstitial edema rather than pneumonia . No pleural effusion is seen . There is no evidence of pneumothorax . The cardiac and mediastinal silhouettes are stable . The distal aspect of the right - sided PICC is faintly seen on the frontal view coursing into the SVC , distal aspect not well seen .
    OUTPUT:
    
Low lung volumes . Perihilar and bibasilar opacities more likely reflect mild interstitial edema rather than pneumonia .