Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The inspiratory lung volumes are low with elevation of both hemidiaphragms . As compared to the preceding radiograph , there is a new horizontal linear opacity in the right lung base , which does not obscure the right hemidiaphragm likely representing compressive atelectasis . A second homogeneous opacity in the lateral right lung base abutting the pleura is also new from the preceding radiograph and likely represents pleural fluid . No pneumothorax is present . The left lung is clear . The pulmonary vasculature is not engorged . The cardiomediastinal silhouette is unchanged .
    OUTPUT:
    
New compressive atelectasis and pleural fluid at the right lung base from ___ . Recommend lateral chest radiograph or lateral decubitus view to further assess this acute finding .