Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is at the upper limits of normal size . The mediastinal and hilar contours appear unchanged . A moderate interstitial abnormality has markedly increased suggesting moderate interstitial pulmonary edema . There are also patchy posterior opacities that are more focal than elsewhere , but probably due to atelectasis and edema . Very small bilateral pleural effusions are suspected and fissures are mildly thickened . There is no pneumothorax .
    OUTPUT:
    
Findings consistent with interstitial pulmonary edema . If symptoms were to persist after treatment , then followup radiographs could be considered since there is a patchy focal posterior basilar opacity , probably part of the same process , although coinciding infection is difficult to completely exclude .