Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Ill - defined patchy airspace opacities , most pronounced in the right lower lung zone may reflect the clustered centrilobular nodular opacities seen on the CT scan . No pleural effusion or pneumothorax identified . The size of the cardiomediastinal silhouette is within normal limits .
    OUTPUT:
    
Ill - defined airspace opacities seen predominantly in the right lower lung zone likely correlates with what was seen on the CT scan and may be reflective of aspiration pneumonia .