Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is almost complete opacification of the left hemithorax with leftward shift of the trachea and aortic knob is compatible with volume loss . Evaluation of the cardiac silhouette is limited due to opacification of the left hemithorax . The right lung is clear . There is a calcified aortic knob . Feeding tube projects over the right mid abdomen .
    OUTPUT:
    
1 . Opacification left hemithorax with leftward mediastinal shift is compatible with volume loss in this patient with reported history of pneumonectomy . 2 . Evaluation of the cardiac silhouette and presence of a pericardial effusion is limited due to opacification of left hemithorax .