Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is mildly enlarged . The hila bilaterally are prominent . Mediastinal contour is unremarkable . The pulmonary vasculature is normal . Lungs are clear . No pleural effusion or pneumothorax is seen . There are no acute osseous abnormalities .
    OUTPUT:
    
Mildly prominent hila bilaterally , and underlying lymphadenopathy is not excluded . Otherwise , no acute cardiopulmonary abnormality .