Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear . The hilar and mediastinal contours are normal . Tortuosity of the aorta is chronic . There is no pneumothorax or pleural effusion . Pulmonary vascularity is normal . S - shaped scoliosis of the thoracolumbar spine is once again appreciated . Also noted is severe degenerative and erosive changes of the left glenohumeral joint , which has considerably progressed since ___ . Atherosclerotic calcifications can be seen in the right carotid artery .
    OUTPUT:
    
1 . No evidence of pneumonia . 2 . Severe progressive and erosive osteoarthritis of the left glenohumeral joint . 3 . Right carotid artery calcification .