Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal , lateral and right lateral decubitus radiographs of the chest were obtained . Opacities along the right lateral pleural surface do not change position on decubitus views consistent with loculated effusions . No left pleural effusion . No pneumothorax . Normal heart size and mediastinal contours . A drain is noted in the right upper quadrant .
    OUTPUT:
    
Loculated right pleural effusion .