Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The study of 00 :08 shows no appreciable change in the small to moderate right apical pneumothorax . However , right basilar subsegmental atelectasis and surrounding airspace opacification has increased . The heart and mediastinum are magnified by the projection . A right pectoral Infuse - A - Port is unchanged in position . Mild blunting of the left costophrenic angle may be due to a new small pleural effusion . The followup exam from ___ hr shows worsening right middle and right lower lobe airspace opacification superimposed on subsegmental atelectasis . Superimposed infection or aspiration can not be excluded . The small to moderate right apical pneumothorax is unchanged . There is stable left retrocardiac linear atelectasis .
    OUTPUT:
    
Stable small to moderate right apical pneumothorax . Two successive radiographs show right basilar subsegmental atelectasis with increasing airspace opacities , which may be due to superimposed infection or atelectasis .