Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Hyperinflation of the lungs is stable . Asymmetric elevation of the left hemidiaphragm with bibasal opacities . No pulmonary edema . The cardio mediastinal contours are unchanged . No pneumothorax . Prior right shoulder arthroplasty .
    OUTPUT:
    
New bibasilar opacities , in the appropriate clinical setting can be pneumonia . Follow - up chest radiograph if clinically indicated and persistent symptoms .