Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Chronic stable heterogeneous opacity in the right middle lobe and left lower lobe . No new focal opacity , pleural effusion , pulmonary edema or pneumothorax . Heart size , mediastinal contour and hila are normal . No bony abnormality .
    OUTPUT:
    
Chronic stable right middle lobe and left lower lobe opacities , likely scarring from prior parenchymal process . No radiographic evidence of acute cardiopulmonary process . Results were conveyed via telephone to Dr . ___ by Dr . ___ on ___ at 2 :30 p .m . within 10 minutes of observation of findings .