Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Bilateral , left greater than right , lower lobe opacities most likely represents atelectasis . The lung volumes are low . No focal consolidation or pulmonary edema is present . There is a possible small left pleural effusion . No significant right pleural effusion is identified . There is no pneumothorax . The cardiac and mediastinal contours are normal .
    OUTPUT:
    
Possible small left pleural effusion and b / l lower lung ( left greater than right ) opacities that most likely represent atelectasis .