Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low , and accompanied by basilar predominant pulmonary fibrosis in keeping with known chronic interstitial lung disease . No definite superimposed pneumonia is evident , but lateral view is limited by low lung volumes and extensive respiratory motion . Cardiac silhouette is mildly enlarged , but stable in size . Mediastinal and hilar contours are stable in appearance .
    OUTPUT:
    
Chronic basilar predominant interstitial fibrosis without convincing evidence of a superimposed acute infectious pneumonia . However , given limitations of the current lateral view , a repeat lateral view with improved technique may be helpful to exclude a subtle basilar pneumonia if clinical suspicion for infection persists .