Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided . A catheter projects over the right chest wall with its tip residing in the region of the superior vena cava . The heart is moderately enlarged . Mild central hilar congestion is noted . Streaky opacity persists in the left upper lobe which likely represents a scarring at the site of previous pneumonia . No definite effusion or pneumothorax . Bony structures are intact . Mild compression deformities in the mid-to - lower T spine again noted .
    OUTPUT:
    
Mild - to - moderate cardiomegaly . Streaky left upper lobe opacity likely scarring in the setting of old pneumonia . Mild central hilar congestion .