Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Interval removal of the right - sided chest tube with development of a new small right apical pneumothorax . No evidence of tension . Improved aeration bilaterally compared to the prior exam . No focal consolidation , overt pulmonary edema , or pleural effusion . The heart is top - normal in size , unchanged . The mediastinal contours and hila are within normal limits . The left sided Port - A - Cath appears intact and unchanged in position .
    OUTPUT:
    
Small right apical pneumothorax status - post chest tube removal .