Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Left - sided single - chamber pacemaker lead terminates in the right ventricle . Heart is moderately enlarged but unchanged . Mediastinal and hilar contours are relatively stable . There is mild pulmonary edema and small bilateral pleural effusions . Streaky opacities in the lung bases likely reflect atelectasis . No pneumothorax is present . There is scarring within the lung apices . No acute osseous abnormality is visualized .
    OUTPUT:
    
Mild congestive heart failure with small bilateral pleural effusions , not significantly changed compared to the prior exam .