Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes remain low . The cardiac and mediastinal contours are unchanged , with the heart size appearing within normal limits . No pulmonary edema is demonstrated . Small bilateral pleural effusions are re- demonstrated , though the size of these effusions appears slightly decreased compared to the prior exam . Streaky and linear opacities in the lung bases most likely reflect atelectasis . Infection , however , is not completely excluded . No pneumothorax is seen . Remote fracture of the right mid clavicle is again seen .
    OUTPUT:
    
Small bilateral pleural effusions , slightly decreased in the interval , with continued bibasilar streaky and linear opacities most likely reflective of atelectasis . Infection , however , is not completely excluded .