Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low leading to crowding of the bronchovascular structures . No focal consolidation , pleural effusion , pneumothorax , or overt pulmonary edema is seen . The cardiomediastinal silhouette is stable . Redemonstrated is a left - sided vagal stimulating device unchanged from prior examination . No bony abnormality is detected .
    OUTPUT:
    
No radiographic evidence for acute cardiopulmonary process .