Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The examination is limited due to is placement of the patient 's arms across the lower chest , obscuring detail of the lower mediastinum and lung bases as well as the pleura and ribs in this region . Heart size and mediastinal contours are within normal limits , and lungs are grossly clear . Minimal blunting of left costophrenic sulcus posteriorly could reflect pleural thickening or small effusion . Mild compression deformities at the thoracolumbar junction on the lateral radiograph rib indeterminate age without older studies for comparison . No acute , displaced rib fractures are evident on this limited assessment . .
    OUTPUT:
    
Limited chest radiograph due to partial obscuration of the lower chest as described above . Within these limitations , no acute traumatic injury is identified in the chest . If clinical suspicion is high , consider repeat radiograph with improved positioning of the arms or a CT scan .