Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest . There is no focal consolidation , pleural effusion or pneumothorax . The heart size is mildly enlarged . The mediastinal contours are unremarkable . There is no evidence of widened mediastinum . No free air .
    OUTPUT:
    
Mild cardiomegaly . No evidence of widened mediastinum . The lungs appear clear .