Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is mild cardiomegaly . The hilar and mediastinal contours are normal . The lungs are well expanded and clear . There are no pleural effusions or pneumothorax . Visualized osseous structures are grossly unremarkable .
    OUTPUT:
    
Mild cardiomegaly with no radiographic evidence of an acute cardiopulmonary process .