Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest demonstrate nincreased lung volumes suggestive of underlying emphysema . There is no pleural effusion , focal consolidation , or pneumothorax . Right lung base opacities obscure right hemidiaphragm medially , which most likely represent atelectasis and / or scarring . Heart size is normal . There is no pulmonary edema .
    OUTPUT:
    
Increased lung volumes suggestive of underlying emphysema . Right lung linear opacities likely represent atelectasis and / or scarring .