Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Two portable views of the chest are compared to previous exams from ___ and ___ . The lungs are clear of confluent consolidation or evidence of large effusion . Cardiomediastinal silhouette is within normal limits . Osseous and soft tissue structures are unremarkable .
    OUTPUT:
    
No definite acute cardiopulmonary process .