Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Since the prior film , a left chest tube has been inserted . The side port is possibly within the chest wall . There is reduction in the left pleural effusion with a moderate amount still remaining . The degree of rightward mediastinal shift is unchanged from the prior radiograph . There is a hint of radiolucency around the left mediastinal border suggesting some degree of pneumothorax as well . There are multiple rib fractures of the left posterior third through seventh ribs . The fifth and sixth rib fractures are floating . There is likely a small right effusion , but the right lung is clear and appears better aerated .
    OUTPUT:
    
1 . New left chest tube with the side port possibly within the chest wall , which needs to be advanced . 2 . Improved aeration and reduction of effusion on the left with small pneumothorax . 3 . Stable rightward mediastinal deviation . 4 . Displaced fractures of the left third through seventh ribs with floating fragments of the fourth and fifth ribs . Findings were communicated to Dr . ___ by Dr . ___ by telephone on ___ at 11 :00 a .m .