Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Moderate vascular congestion . The apparent widening of the upper mediastinum is likely projectional . The lungs are otherwise clear . Heart size is stable . The hilar contours are stable . No pleural effusion or pneumothorax is seen . There are no acute osseous abnormalities .
    OUTPUT:
    
1 . Moderate vascular congestion , without evidence of pleural effusions . 2 . No evidence of pneumonia .