Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest were obtained . The heart is mildly enlarged . There is no sign of congestive heart failure or pneumonia . No pleural effusion or pneumothorax is seen . A focal eventration of the right hemidiaphragm is noted . Faint atherosclerotic calcifications are seen along the aortic knob . The imaged osseous structures are intact . No free air below the right hemidiaphragm .
    OUTPUT:
    
Mild cardiomegaly without signs of congestive heart failure or pneumonia .