Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiomediastinal silhouette and pulmonary vasculature are within normal limits . Heart size is at the upper limits of normal . No CHF , focal infiltrate , effusion , or pneumothorax detected . . No displaced rib fracture is identified on these lung technique films .
    OUTPUT:
    
No acute pulmonary process identified .