Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is at the upper limits of normal size . There is similar mild relative elevation of the right hemidiaphragm . A streaky opacity persists at the left lung base , but partly resolved . Otherwise , the lungs appear clear . There is no definite pleural effusion or pneumothorax . Very small trace pleural effusions are difficult to completely exclude , however . Multifocal compression deformities of the thoracic spine are very similar to prior thoracic spine radiographs and are likely attributable to substantial bony demineralization .
    OUTPUT:
    
No evidence of acute cardiopulmonary disease or injury . Stable compression deformities . Bony demineralization .