Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low . Left lower lung opacity overlies the spine on lateral view , new since ___ . Mediastinal contour , hila , and cardiac silhouette are normal . A small right pleural effusion is new since ___ . No pneumothorax or radiographic evidence of fracture .
    OUTPUT:
    
1 . Left lower lobe pneumonia . 2 . No evidence of fracture within the limits of plain radiography .