Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is enlarged . There is gas in either stomach or bowel portion of the left hemidiaphragm , which is similar in appearance to the prior study . There is a small effusion on the left side . There is no evidence of pneumonia or pulmonary edema . There is no pneumothorax . Mediastinal contours are grossly normal .
    OUTPUT:
    
No evidence of pneumonia or pulmonary edema . These findings were communicated to Dr . ___ by telephone at 4 :30 PM on ___ by Dr . ___ .