Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lingular subpleural nodule is better evaluated on prior CT . The right lung is well expanded and clear . Chronic blunting of the left costophrenic angle . Heart size is top normal . Calcifications of the aortic arch . Mild right acromioclavicular arthropathy . No free air under the diaphragm .
    OUTPUT:
    
1 . No acute cardiopulmonary process . 2 . No free air .