Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are well - expanded and notable for left lower lobe atelectasis . Lungs are otherwise clear . No pleural effusion or pneumothorax . Heart size , mediastinal contour , and hila are unremarkable . Persistent posterior elevation of the left hemidiaphragm is most consistent with diaphragmatic eventration . No displaced rib fractures . Visualized upper abdomen is within normal limits .
    OUTPUT:
    
1 . Stable chest . 2 . No displaced rib fractures . Although no fracture or other bone abnormality is seen , conventional chest radiographs are not appropriate for detection or characterization of chest cage lesions . Any focal findings should be clearly marked and imaged with either bone detail views or CT scanning .