Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Again seen is cardiomegaly as well as prominence of the superior mediastinum . This appears more pronounced than on the prior examination , but is also accentuated by lordotic positioning . There is upper zone redistribution with alveolar opacities at both lung bases , including retrocardiac opacity that obscures the left hemidiaphragm . A tiny left effusion would be difficult to exclude . The degree of opacity at the right base is very slightly improved .
    OUTPUT:
    
Cardiomediastinal silhouette appears larger , but is likely accentuated by lordotic positioning . Findings compatible with pulmonary edema , including bibasilar alveolar opacities . Possible minimal interval improvement at the right base . As before , the presence of superimposed infectious consolidation at the lung bases , particularly on the left , would be difficult to exclude .