Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest demonstrate a small residual pneumothorax , present at the right lung apex , as well as at the right lung base , with a right - sided chest tube , directed towards the apex in a similar position compared to the prior studies . The degree of subcutaneous emphysema along the right lateral chest wall and abdominal wall as well as the left lateral chest wall has improved since the prior study . The overall lung volumes are slightly lower than on the prior study , with mild atelectasis bilaterally , with persistent small bilateral pleural effusions . There is no evidence of tension or mediastinal shift , and the heart size is stable . A prosthetic mitral ring is unchanged in position .
    OUTPUT:
    
Small residual right apical and basal pneumothorax , with chest tube in place . Small bilateral pleural effusions and mild bibasilar atelectasis .