Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Since previous exam , the patient has been extubated and NG tube has been removed . Left lower lobe collapse has significantly improved . Mild volume overload has worsened . There is probably a small left pleural effusion . Mediastinal and cardiac contours are unremarkable .
    OUTPUT:
    
1 . Patient has been extubated and NG tube has been removed . 2 . Significant improvement of left lower lobe collapse . 3 . Mild volume overload .