Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP and lateral views of the chest were provided . The patient was positioned upright . There is increased left effusion , which is now large , with residual aeration of portions of the left upper lobe . The right lung remains clear . The heart can not be assessed . Mediastinal contour is stable . Bony structures are intact .
    OUTPUT:
    
Increased left effusion , now large in size , with associated collapse of left lower lobe and portions of the left upper lobe .