Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is interval increase in the layering right effusion . 2 right - sided pigtail catheters are unchanged . There is mild increase pulmonary vascular redistribution most marked on the low left . There is a small left effusion . There is mild mediastinal shift to the right .
    OUTPUT:
    
Increased fluid overload superimposed on infection