Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable semi-upright AP view of the chest provided . There is no pneumothorax . There is opacity in the left lung base likely reflecting a combination of consolidation and effusion . Mild pulmonary edema persists .
    OUTPUT:
    
No signs of pneumothorax with persistent left lower lobe consolidation , effusion . Mild edema as seen on prior exam .