Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Enlarged heart size is stable since ___ . Mediastinal and hilar contours are unremarkable . Aorta is tortuous in course , unchanged in appearance . There are no lung opacities concerning for pulmonary edema / pneumonia . There is no pleural effusion .
    OUTPUT:
    
Moderately enlarged heart size , stable since ___ . No findings concerning for pulmonary edema or pneumonia .