Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Multiple displaced rib fractures on the right related to recent trauma . No visible pneumothorax . No localized consolidation to suggest pneumonia . Minimal atelectasis at the lung bases . Retrocardiac opacities slightly asymmetric on the left may likely represent atelectasis , however underlying pneumonia can not be excluded . Heart size is normal .
    OUTPUT:
    
No pneumonia . Multiple displaced contiguous rib fractures on the right . Retrocardiac opacities slightly asymmetric on the left may likely represent atelectasis , however underlying aspiration pneumonia could also be considered .