Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Massive cardiomegaly is unchanged . Lung volumes are low . There is mild pulmonary edema . Streaky retrocardiac opacity likely represents atelectasis . No definite focal consolidation seen . No pneumothorax or large pleural effusion . Sternotomy wires are intact . Prosthetic aortic valve is unchanged . Atherosclerotic calcifications are noted of the aortic arch .
    OUTPUT:
    
Massive cardiomegaly with mild pulmonary edema .