Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Two frontal radiographs of the chest were acquired . The lungs are clear . The heart size is normal . The mediastinal contours are normal . There are no pleural effusions . No pneumothorax is seen . Marked dextroscoliosis of the thoracic spine is noted . A contour irregularity along the lateral aspect of the left fifth rib could be a minimally displaced fracture , likely present on the prior study from ___ . There is redemonstration of a displaced fracture through the proximal aspect of the left humerus .
    OUTPUT:
    
Likely old left fifth rib fracture , probably present on the prior radiographs from ___ . No definite new displaced rib fracture .