Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Moderate cardiac enlargement appears similar . Prominent mediastinal contours are also unchanged . Background prominence of the pulmonary vascularity is also quite similar to the prior study . There is probably minimal right basilar atelectasis , but otherwise the lungs appear clear . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
No evidence of acute disease . Moderate cardiomegaly .