Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Moderate to severe generalized infiltrative abnormality is slightly improved when compared with the immediate prior study of ___ . Findings are suggestive of possible barotrauma ( not ' marrow trauma , ' as previously reported ) . Apical pleural thickening is slightly progressed when compared ___ , but appears stable dating back to ___ . There is no focal consolidation , pleural effusion , or pneumothorax . The cardiomediastinal silhouette is within normal limits .
    OUTPUT:
    
Slight improvement in generalized moderate to severe infiltrative pulmonary abnormality .