Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is moderately enlarged as before . The bilateral hila are also enlarged , but similar in configuration to the prior examination consistent with known sarcoidosis . There is a subtle opacity adjacent to the upper pole of the right hilus . There is no large pleural effusion or pneumothorax .
    OUTPUT:
    
Moderate cardiomegaly is stable . Bilateral hilar enlargement is consistent with adenopathy . There is a suggestion of central peribronchial infiltration lateral to the upper pole of the right hilus . Contrast - enhanced CT may be useful for further evaluation if clinically indicated .