Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: No focal consolidation , pleural effusion , pneumothorax or pulmonary edema is seen . Resolution of previous posterior lower lobe opacity seen on previous chest x-ray . Heart size is normal . Mediastinal contours are normal . Multiple old right - sided rib fractures are again seen .
    OUTPUT:
    
Resolution of the previous lower lobe opacity . No evidence of pneumonia .