Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable AP upright chest film ___ at 09 : 16 is submitted .
    OUTPUT:
    
There is a moderate to large right - sided pleural effusion with substantial volume loss in the right lower lung with probable collapse of the right middle and a portion of the right lower lobes . The left lung remains well inflated and clear . No evidence of pulmonary edema . A feeding tube is seen coursing below the diaphragm with the tip not identified . Assessment of the cardiac and mediastinal contours is difficult given due to marked patient rotation on the current study . Overall , when compared to the most recent prior study , there is no significant interval change .