Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Subtle opacity in the right mid lung , in the right perihilar region , may be due to prominent vessels versus focal consolidation . There is no pleural effusion or pneumothorax . The cardiac silhouette is mildly enlarged . Mediastinal contours are unremarkable .
    OUTPUT:
    
Mild cardiomegaly . Subtle opacity in the right mid lung , in the right perihilar region , may be due to prominent vessels versus focal consolidation .