Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are hyperinflated but remain clear without focal consolidation , or effusion . Blunting of the left posterior costophrenic angle is compatible with Bochdalek 's hernia seen on prior CT . The cardiomediastinal silhouette is within normal limits . No acute osseous abnormality . Tips identified projecting over the liver .
    OUTPUT:
    
No acute cardiopulmonary process .