Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lung volumes are low . There is diffuse prominence of the interstitial markings , most consistent with mild pulmonary edema . There is no consolidation , pleural effusions , or pneumothorax . The cardiomediastinal silhouette is normal . Degenerative changes are noted in the thoracic spine . No definite fracture is identified .
    OUTPUT:
    
Mild pulmonary edema .