Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is mild to moderate cardiomegaly . There is asymmetry of the left hilum . No pulmonary edema or definite pneumonia is identified . There is no definite pneumothorax or pleural effusions .
    OUTPUT:
    
1 . No definite pneumonia . 2 . Asymmetry of the left hilum . If further evaluation is warranted , conventional chest radiographs are recommended .