Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Small right pneumothorax has not appreciably increased in size and is probably a similar to the prior exam . No evidence of tension . The right hemidiaphragm remains elevated , compatible with severe volume loss , overall unchanged . Focal opacity in the region of the fiducial in the right perihilar region this slightly decreased in size and less conspicuous compared the most recent exam . Moderate right basal atelectasis has increased . No pleural effusion or pulmonary edema . The heart size is normal . The mediastinum is not widened .
    OUTPUT:
    
Small right apical pneumothorax , overall unchanged from ___ . Increase moderate right basal atelectasis . No appreciable pulmonary hemorrhage . No pleural effusion .