Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Rotated positioning . Allowing for this , heart size is at the upper limits of normal . There is upper zone redistribution and diffuse vascular blurring , consistent with CHF . Bibasilar atelectasis . No definite pneumonic infiltrate . . Although not well seen , the left hemidiaphragm appears to be slightly elevated no gross effusion , though small effusions would be difficult to exclude .
    OUTPUT:
    
Findings consistent with CHF , with interstitial and probable slight pulmonary edema . No gross effusions .