Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest demonstrate moderate cardiomegaly , unchanged . Patient is status post median sternotomy and aortic valve replacement . Minimal right basal atelectasis is again noted . No pleural effusion , focal consolidation or pneumothorax is demonstrated . No evidence of pulmonary edema .
    OUTPUT:
    
Cardiomegaly . No evidence of pneumonia .