Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral chest radiographs demonstrate low lung volumes . There is slight interval improvement in bibasilar reticular abnormality , without effusion or pneumothorax . The cardiac silhouette and mediastinal contours are unchanged , with note of soft tissue in the AP window compatible with known adenopathy .
    OUTPUT:
    
Slightly improved lung volumes , and bibasilar reticular abnormality . The differential diagnosis for this finding includes NSIP , early UIP , eosinophic pneumonia , hypersensitivity pneumonitis .