Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Blunting of the right lateral costophrenic angle may be due to atelectasis or a small effusion . There is pulmonary vascular congestion without overt edema . Cardiac silhouette is mildly enlarged as on prior . Anterior cervical fixation hardware is partially seen .
    OUTPUT:
    
Pulmonary vascular congestion and possible small right pleural effusion .