Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low and exaggerate pulmonary vascular markings . The lungs are clear with no evidence of consolidation , effusion , or pneumothorax . Cardiomediastinal silhouette is normal . The aorta appears tortuous , but stable . Degenerative changes are again noted at bilateral glenohumeral joints .
    OUTPUT:
    
No acute cardiopulmonary process .