Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Left - sided port terminates with the tip at the upper SVC . Moderate cardiomegaly is again noted . There are bilateral increased interstitial opacities consistent with mild pulmonary edema . Additionally , increased retrocardiac opacities are noted and may represent focal atelectasis or an early developing infectious process . There is no pleural effusion or pneumothorax . Multilevel degenerative changes are noted throughout the thoracic spine
    OUTPUT:
    
1 . Findings suggestive of mild pulmonary edema . Increased retrocardiac opacities are again noted and may represent atelectasis . However , an concurrent infectious process has to be excluded in the proper clinical setting . 2 . Moderate cardiomegaly again noted .