Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable AP upright chest film ___ at 23 :08 is submitted .
    OUTPUT:
    
The multiple right sided posterior rib fractures are again seen . The previously seen small right apical pneumothorax on the cervical spine CT is not appreciated on this plain radiograph . The heart remains mildly enlarged . The lungs are low in volumes but without focal airspace consolidation . The patchy opacity in the right upper lung has resolved suggesting that it represented atelectasis . No evidence of pulmonary edema . Marked colonic gas shows distension .