Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear , other than minimal atelectasis in the left lower lobe . Mild cardiomegaly is unchanged . The aorta is mildly tortuous and calcified . Mild elevation of the left hemidiaphragm is unchanged . There are no pleural effusions or pneumothorax . Several old left - sided rib fractures persist .
    OUTPUT:
    
1 . No acute cardiopulmonary process . 2 . Stable mild cardiomegaly .