Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are diminished . No consolidation or edema is noted . The mediastinum is unremarkable . The cardiac silhouette is within normal limits for size . No effusion or pneumothorax is noted . The visualized osseous structures are unremarkable .
    OUTPUT:
    
Within limitations of low lung volumes , no definite acute pulmonary process identified .