Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single portable view of the chest is compared to previous exam from ___ . Given differences in positioning and technique , there has been no significant interval change . There is no large confluent consolidation or effusion . Cardiomediastinal silhouette is unchanged as are the osseous and soft tissue structures .
    OUTPUT:
    
No definite acute cardiopulmonary process .