Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is no radiographic evidence of mediastinal or hilar lymph node enlargement . Heart size is normal but demonstrates left ventricular configuration . The aorta is tortuous and calcified . Lungs are clear except for minimal nonspecific areas of linear scarring at the bases . No pleural effusions are evident . Coronary artery calcifications are present . Bones are diffusely demineralized .
    OUTPUT:
    
1 . No radiographic evidence of mediastinal lymph node enlargement . 2 . Nonspecific bibasilar scarring / fibrosis .