Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest were obtained . Heart is normal in size and cardiomediastinal contour is unremarkable . Lungs are well expanded and clear . There is no pleural effusion or pneumothorax . No displaced rib fracture is identified .
    OUTPUT:
    
1 . No acute intrathoracic abnormality . 2 . Conventional chest radiography is not sensitive for detection of rib fractures .