Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is mild central pulmonary vascular congestion . There is no pleural effusion or pneumothorax . There is no focal consolidation concerning for pneumonia . Heart size is top - normal . Mediastinal contours normal . Bony structures are intact .
    OUTPUT:
    
Mild central pulmonary vascular congestion . Top - normal heart size .