Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are normal . There is no focal consolidation , effusion , or pneumothorax . There is no central vascular congestion or overt pulmonary edema . Mediastinal and hilar contours are stable . Heart size is normal . Surgical clips are seen in the left upper quadrant of the abdomen . Mild degenerative changes are noted in thoracic spine .
    OUTPUT:
    
No acute intrathoracic process .