Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest ___ at 16 :51 are submitted .
    OUTPUT:
    
Right Port - A - Cath unchanged in position . Stable cardiac and mediastinal contours status post median sternotomy for CABG and aortic valve replacement . Nodular opacities at both bases are stable and consistent with known metastatic disease . Interval removal of left chest tube with stable small left apical pneumothorax . Hyperexpansion of the lungs with parenchymal distortion consistent with underlying emphysema . Small bilateral effusions . No pulmonary edema .