Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lungs appear mildly hyperinflated with flattening of the diaphragm . Mild cardiomegaly is unchanged . The hilar contours and pleural surfaces are normal . No evidence of pneumothorax or pleural effusion .
    OUTPUT:
    
1 . No evidence of pneumonia or acute cardiopulmonary process . 2 . Unchanged appearance of mild cardiomegaly and mild hyperinflation of the lungs .