Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable semi-erect chest radiograph ___ at 09 :30 is submitted .
    OUTPUT:
    
Status post median sternotomy with stable cardiac and mediastinal contours given differences in patient rotation . Stab ; e widened right paratracheal stripe consistent with known lymphadenopathy . There continue be scattered patchy ill - defined opacities at the left lung base as well as throughout the right lung with no definite change to suggest an acute infectious process . The patient 's mandible obscures the apices . No obvious pneumothorax .