Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared with the prior study , lung volumes are lower causing a degree of bronchovascular crowding . Mild pulmonary edema is new . The cardiomediastinal and hilar silhouettes are unchanged . The left - sided pacemaker leads project to the right atrium and right ventricle , unchanged in position . No focal consolidation , pleural effusion , or pneumothorax .
    OUTPUT:
    
Mild pulmonary edema . No focal consolidation concerning for pneumonia .