Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Left mid and lower lung patchy consolidation is seen which is slightly less pronounced than on the recent prior compatible with improvement following an aspiration event . A small left pleural effusion is also noted . The right lung is well aerated . Sternotomy wires are unchanged . Heart size is normal with normal cardiomediastinal silhouette .
    OUTPUT:
    
Improving patchy left mid and lower lung consolidation compatible with aspiration . Trace left pleural effusion .