Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest demonstrate low lung volumes without pleural effusion , focal consolidation or pneumothorax . Left lung base opacities are most likely atelectasis . Hilar and mediastinal silhouettes are unremarkable . Heart is normal in size . There is no pulmonary edema . No displaced rib fracture is detected . Partially imaged upper abdomen is unremarkable .
    OUTPUT:
    
No evidence of a rib fracture . In the setting of high clinical suspicion for a rib fracture , consider dedicated rib series for further assessment .