Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size is mildly enlarged . The mediastinal and hilar contours are unremarkable . There is minimal upper zone vascular redistribution , but no overt pulmonary edema is demonstrated . No pleural effusion , focal consolidation or pneumothorax is visualized . There are no acute osseous abnormalities .
    OUTPUT:
    
Mild pulmonary vascular engorgement without frank pulmonary edema .