Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest radiographs . Aside from linear atelectasis in the left upper lobe , the lungs are clear . There is no pleural effusion or pneumothorax . The cardiomediastinal silhouette is normal .
    OUTPUT:
    
No acute cardiopulmonary process . Findings discussed by Dr . ___ with Dr . ___ by phone at 1 :30 p .m . on ___ .