Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral radiographs of the chest were acquired . There is re- demonstration of surgical clips in the bilateral perihilar regions as well as within the right lower lung . If present , a chest tube is not well assessed . A moderate left pleural effusion is not significantly changed . Consolidation at the left lung base is likely related to compressive atelectasis , although concomitant infection in this region can not be excluded . The lungs are otherwise clear . There is no right pleural effusion . No pneumothorax is seen . Mild - to - moderate enlargement of the cardiac silhouette is not significantly changed . The mediastinal contours are normal . Multilevel degenerative changes of the thoracolumbar spine are noted .
    OUTPUT:
    
1 . Moderate left pleural effusion , not significantly changed . 2 . Left lower lung consolidation , likely compressive atelectasis , although infection in this area can not be excluded . 3 . Unchanged mild - to - moderate cardiomegaly .