Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are slightly low . Blunting of the costophrenic angles bilaterally may be technical or may be due to small pleural effusions . The lungs appear clear . Cardiomegaly is unchanged and is at least partially exaggerated by AP technique and low lung volumes .
    OUTPUT:
    
No evidence of acute disease .