Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest demonstrate mild improved aeration compared to the prior exam . There small bilateral pleural effusions . There is volume loss at the bases . Right IJ line tip is in the distal SVC . There is a tiny left apical pneumothorax , smaller than on the prior study .
    OUTPUT:
    
Improved appearance of the lungs .