Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single portable view of the chest There is minimal left lower lobe atelectasis , otherwise the lungs are clear . Cardiac size is normal . The aorta is slightly unfolded . There is no pleural effusion , pneumothorax or evidence of pneumonia .
    OUTPUT:
    
No evidence of acute cardiopulmonary process given low lung volumes .