Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There has been interval removal of a right - sided chest strain . No pneumothorax seen . Lung volumes remain low particularly on the right . No consolidation or pneumothorax seen . Tiny right pleural effusion . Previous median sternotomy and coronary artery bypass graft noted . Old fracture of the right surgical neck of humerus is again seen .
    OUTPUT:
    
No pneumothorax seen following chest drain removal .