Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Overall no significant interval change from the prior exam . Lung volumes are slightly low , similar to the prior exam . Relative elevation of the left hemidiaphragm is also unchanged from the prior exam . No focal consolidation , effusion , edema , or pneumothorax . The heart size is normal . The thoracic aorta is tortuous , similar the prior exam . Aortic knob calcifications are mild , unchanged . Dextroconvex scoliosis of the upper thoracic spine is again noted . Degenerative changes in the shoulders and AC joints are noted , worse on the right .
    OUTPUT:
    
No significant interval change in the radiographic appearance of the chest . Low lung volumes . No evidence of focal pneumonia .