Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are mildly hyperexpanded . There is no focal opacity or pulmonary edema . There is a small right pleural effusion . There is no left pleural effusion or pneumothorax . The aorta is tortuous . The cardiomediastinal silhouette is otherwise normal . The bones are diffusely demineralized with multiple compression deformities in the thoracic spine , which are likely chronic , though no prior exams are available for comparison .
    OUTPUT:
    
Hyperexpanded lungs and small right pleural effusion . No evidence of pneumonia .