Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral chest radiographdemonstrates well expanded and clear lungs . No pleural effusion or pneumothorax . Heart size , mediastinal contour , and hila are unremarkable . Limited assessment of the upper abdomen is within normal limits . Limited assessment of the osseous structures demonstrates a mildly displaced lateral second right rib fracture . Cortical irregularity along the anterolateral right third rib may represent a subtle fracture .
    OUTPUT:
    
1 . Mildly displaced second lateral right rib fracture . 2 . Possible subtle fracture along anterolateral right third rib . 3 . No pneumothorax .