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 ___ . Linear left basilar opacities are again seen and could represent atelectasis versus scarring . Elsewhere , the lungs are clear . There is no consolidation , effusion or pulmonary vascular congestion . The cardiomediastinal silhouette is within normal limits . No acute osseous abnormality is detected .
    OUTPUT:
    
No acute cardiopulmonary process .