Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Allowing for technique , no definite infiltrate is identified . Compared to the prior film , there is increase in the degree of upper zone redistribution and vascular plethora , suggesting mild fluid overload . Otherwise , no significant change is detected . No definite interstitial edema and no alveolar edema is seen . No effusions . Probable atelectasis in the lower lobe posteriorly , ? on the right , but this does not appear substantially changed . Again noted is hyperinflation consistent with COPD and moderately severe cardiomegaly . Including prominence of the contour of the main pulmonary artery . Known vertebral body compression deformities 0 less well visualized on the current film due to technical differences .
    OUTPUT:
    
Increased upper zone redistribution and vascular plethora compared with ___ , consistent with mild fluid overload / early CHF . Probable right lower lobe atelectasis , unchanged . No new infiltrate identified .