Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Patient is rotated somewhat to the right . Moderate left pleural effusion with overlying atelectasis is seen . No right pleural effusion is seen . No right - sided focal consolidation is seen . The cardiac silhouette is moderately enlarged . Mediastinal contours unremarkable . No pneumothorax is seen . No pulmonary edema is seen . Multilevel degenerative changes are seen along the spine .
    OUTPUT:
    
Moderate left pleural effusion with overlying atelectasis . Left base opacity likely represents combination of the above , however , underlying consolidation is not excluded . Moderate cardiomegaly .