Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low , accounting for some bronchovascular crowding . No focal opacities are identified . There is no pleural effusion or pneumothorax . Cardiac size is within normal limits , taking into account this is an AP projection . The aorta is tortuous . No mediastinal abnormalities are identified .
    OUTPUT:
    
No evidence of acute cardiopulmonary process .