Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP and lateral views of the chest are compared to previous exam from earlier the same day at 3 : 58 a .m . Within limitation of patient body habitus , the lungs are clear . There is no effusion or pneumothorax . Cardiomediastinal silhouette is within normal limits . Osseous and soft tissue structures are unremarkable .
    OUTPUT:
    
No acute cardiopulmonary process .