Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP and lateral images of the chest . The lungs well expanded and clear . There is no pleural effusion or pneumothorax . The cardiomediastinal silhouette appears to be enlarged , but this may be due to technique . The visualized osseous structures are unremarkable .
    OUTPUT:
    
1 . No acute cardiopulmonary process . 2 . Cardiomediastinal silhouette appears to be enlarged , but this may be due to technique . Recommend non-emergent frontal PA radiograph at full inspiration to rule out cardiomegaly . These findings were communicated via the ED QA nurses at 8 :45 a .m . on ___ .