Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Two PA and one lateral chest radiographs were obtained . A small left pleural effusion is new since ___ . No consolidation or pneumothorax is present . Cardiac and mediastinal contours are normal . No displaced rib fracture is identified .
    OUTPUT:
    
Small left pleural effusion is new since ___ . Given history of rib trauma , this could represent hemorrhage from a slow bleed . Given the left lower rib trauma , consider ultrasound or CT evaluation of the spleen . Findings were discussed with Dr ___ via phone at ___ .