Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A right middle lobe consolidation persists and is consistent with the patient 's known post-obstructive pneumonia . There is no new consolidation . A small right pleural effusion is unchanged . There is no pneumothorax . Mild enlargement of the right hilum is consistent with the patient 's known lymphadenopathy , although it is better evaluated on recent CT scan . The cardiac silhouette is normal .
    OUTPUT:
    
1 . Stable right middle lobe pneumonia and small right pleural effusion . 2 . No significant change from prior radiograph .