Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal . Aorta is mildly tortuous without change . Lungs are clear , and there are no pleural effusions . Bones are demineralized , and note is made of post-operative changes in the upper thoracic spine as well as a mild compression deformity in the lower thoracic spine . Healed lateral left rib fracture is unchanged , and may potentially be related to known history of myeloma . More subtle healed right rib fractures are seen to better detail on recent PET - CT .
    OUTPUT:
    
No evidence of pneumonia .