Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest were obtained . The lungs appear clear . No focal consolidation , effusion or pneumothorax . Heart and mediastinal contours appear normal . Old rib deformities are noted . No definite sign of acute displaced fracture , though clinical correlation advised . The rib deformities appear stable from prior exam .
    OUTPUT:
    
No definite signs of acute intrathoracic trauma . Old rib deformities . If there is strong clinical concern for acute rib fracture , dedicated rib series may be obtained .