Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Evaluation of the chest is limited due to patient rotation . The inspiratory lung volumes are decreased with resultant bronchovascular crowding and accentuation of the cardiomediastinal silhouette . An airspace opacity in the right lung base is new from the prior study and may represent a focus of infection . No large pleural effusion or pneumothorax is detected . There is moderate levoconvex curvature of the thoracolumbar spine .
    OUTPUT:
    
A new airspace opacity in the right lung base may represent a focus of infection .