Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views the chest were provided . The heart is top - normal in size . The lungs are clear bilaterally . No pneumothorax or effusion is seen . No overt signs of pneumonia . Mild hilar congestion difficult to exclude . Bony structures are intact . There is a mild pectus excavatum deformity of the sternum .
    OUTPUT:
    
Mild cardiomegaly . Mild hilar congestion likely present .