Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size , mediastinal and hilar contours are normal . There has been slight worsening of right basilar atelectasis with persistent small adjacent pleural effusion . Improved aeration at the left lung base but apparent slight increase in a small left pleural effusion . Note is made of bulla at the right apex , but there are no evident pneumothoraces . Small amount of subcutaneous emphysema persists in the right chest wall .
    OUTPUT:
    
Small bilateral pleural effusions and adjacent basilar atelectasis , right greater than left .