Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: 2 views of the chest show a left lower lobe opacity with a possible associated effusion . The left mediastinal silhouette appears prominent . The cardiac silhouette is normal . No pneumothorax is present .
    OUTPUT:
    
Left lower lobe opacity with possible associated effusion in the setting of trauma . A chest CT is recommended for further evaluation . These findings were communicated to Dr . ___ ___ telephone at 21 : 10 on ___