Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient 's symptoms are reportedly on the right . The cardiac and mediastinal silhouettes appear unremarkable and unchanged compared to the prior examination . No focal pulmonary opacity , pleural effusion , or evidence of pneumothorax . No displaced rib fracture is identified within the limits of these radiographs . Significant degenerative changes of the left shoulder and at least moderate degenerative changes at the right shoulder are noted . No appreciable interval change compared to ___ .
    OUTPUT:
    
No evidence of acute cardiopulmonary disease . No displaced rib fractures identified ( within the limits of this study ) .