Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac , mediastinal and hilar contours appear unchanged . There is increased opacification of the left mid to lower lung suggesting pneumonia with the greatest suspected degree of involvement in the superior segment of the left lower lobe . There is a similar mild interstitial abnormality involving both lungs which alternatively suggests mild pulmonary edema . There is no definite pleural effusion or pneumothorax . Sclerotic bones suggest renal osteodystrophy .
    OUTPUT:
    
1 . Findings suggesting pneumonia in the left lung with the greatest degree of suspected involvement in the superior segment of the left lower lobe . 2 . Persistent mild interstitial abnormality suggesting mild pulmonary edema .