Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP portable upright and lateral views of the chest are provided . The lungs are clear without focal consolidation , effusion , or pneumothorax . The heart is mildly enlarged . The mediastinal contour and hilar configuration is normal . The bony structures are intact . No large effusion or pneumothorax is seen . There is no free air below the right hemidiaphragm .
    OUTPUT:
    
Mild cardiomegaly . Otherwise , unremarkable .