Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There relatively low lung volumes . Prominence of the interstitial markings bilaterally suggests interstitial edema . Persistent medial left base retrocardiac opacity on the frontal view may be due to tortuous aorta or hiatal hernia . Streaky basilar opacity on the lateral view may represent atelectasis although infection is not excluded in the appropriate clinical setting . No focal consolidation is seen elsewhere . No pleural effusion or pneumothorax is seen . The cardiac and mediastinal silhouettes are stable .
    OUTPUT:
    
Streaky basilar opacity on the lateral view may represent atelectasis but infection is not excluded in the appropriate clinical setting . Prominence of the interstitial markings bilaterally suggests mild interstitial edema .