Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Persistent small right pleural effusion and pleural thickening , unchanged since at least ___ . Focal opacity in the right lung base , best seen on the lateral view with obscuring of the right hemidiaphragm , is overall unchanged , and may suggest aspiration . Stable postoperative appearance of the cardiomediastinal silhouette with mild cardiomegaly . Perhaps mild increased pulmonary vascular congestion compared to the prior exam , but no frank pulmonary edema . No pneumothorax . No left pleural effusion . Surgical clips projecting over the right upper quadrant are unchanged . Compression deformity in the thoracic spine vertebrae are unchanged since ___ .
    OUTPUT:
    
No change in right pleural thickening or pleural effusion for several days . No change in right lower lobe consolidation best seen on lateral view .