Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral radiographs of the chest were provided . There is minimal left lower lobe atelectasis . The lungs are otherwise clear . Mild cardiomegaly is again noted . The mediastinal contours are otherwise normal . There is no pneumothorax or pleural effusion . Pulmonary vascularity is normal .
    OUTPUT:
    
1 . No evidence of pneumonia . 2 . Mild cardiomegaly .