Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low which leads to bronchovascular crowding . There is no focal consolidation . There is mild interstitial edema . The cardiomediastinal silhouette and normal hilar contours are normal . There is no pleural effusion or pneumothorax . No definitive rib fracture is seen . Visualized upper abdomen is unremarkable .
    OUTPUT:
    
Mild vascular plethora . No pneumothorax . If there is persistent concern for rib fracture , a dedicated rib series may be obtained .