Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiomediastinal contours are unremarkable . Again seen is a small right - sided pleural effusion which is unchanged compared to the prior exam . There is no pneumothorax . There has been slight interval improvement of the atelectasis within the right middle lobe . Again seen is pulmonary vascular congestion accompanied by mild interstitial edema . The drainage catheter overlying the right upper quadrant of the abdomen is unchanged . There is also persistent marked elevation of the right hemidiaphragm . The visualized osseous structures are unremarkable .
    OUTPUT:
    
Unchanged small right - sided pleural effusion with no evidence of pneumothorax .