Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Increased interstitial markings consistent with edema are slightly more pronounced . There is additional streaky density bilaterally consistent with subsegmental atelectasis or scarring . The heart appears large as on the earlier study . Mediastinal structures are stable . There are no concerning bone findings .
    OUTPUT:
    
Findings consistent with congestive heart failure . No focal consolidation . Compared with the previous study , interstitial markings appear to have increased slightly .