Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size and cardiomediastinal contours are normal . Lungs are clear without focal consolidation , pleural effusion , or pneumothorax . A BB marker overlies the lateral left tenth rib , which demonstrates cortical irregularity and a step - off , consistent with a minimally displaced rib fracture .
    OUTPUT:
    
Minimally displaced fracture of the lateral left tenth rib .