Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: New small left pleural effusion . Clear lungs bilaterally without pneumothorax . Heart size , mediastinal contours and hila are normal . No bony abnormality .
    OUTPUT:
    
New small left pleural effusion . No pneumonia . Results conveyed via telephone to Dr . ___ by Dr . ___ , on ___ at 1 :30 p .m . within 10 minutes of observation of findings .