Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Small right pleural effusion is unchanged . Moderate left pleural effusion is likely stable , however there is worsening opacity at the left base which obscures the left heart border and left hemidiaphragm . Left pleural drain has been removed . Heart size is not well evaluated but likely within normal limits . The left upper and right lung are relatively clear . Mediastinal hilar contours are normal . There is no large pneumothorax . Left PICC is coiled in the left brachiocephalic vein and should be repositioned .
    OUTPUT:
    
1 . Left PICC coiled in the left brachiocephalic vein should be repositioned 2 . Worsening opacity at the left base may reflect pneumonia or hemorrhage .