Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP upright and lateral views of the chest were provided . The heart remains moderately enlarged . The lungs are clear . No evidence of pneumonia or CHF . The mediastinal contour is stable . Bony structures are intact . No free air below the right hemidiaphragm .
    OUTPUT:
    
Cardiomegaly , unchanged . No superimposed acute process .