Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Mild left hemidiaphragm elevation is unchanged . The heart size is normal . The hilar and mediastinal contours are within normal limits . There is no pneumothorax , focal consolidation , or pleural effusion . A moderate amount of air is seen within the included views of the colon .
    OUTPUT:
    
Unchanged mild left hemidiaphragm elevation . No superimposed acute process detected .