Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size is normal . The hilar and mediastinal contours are normal . No focal consolidations concerning for pneumonia are identified . There is mild pulmonary vascular congestion . There is a small right pleural effusion overall unchanged compared to the prior exam . The visualized osseous structures are unremarkable . There is no pneumothorax .
    OUTPUT:
    
Small right pleural effusion . No focal consolidations concerning for pneumonia identified .