Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest are compared to previous exam from ___ . The lungs are clear . Persisitent mild indistinctness of the left hemidiaphragm is again seen , without correlate on the lateral view ; however , is not acute in nature . Cardiomediastinal silhouette is normal as are the osseous and soft tissue structures .
    OUTPUT:
    
No acute cardiopulmonary process .