Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is a loculated pleural effusion at the lateral left lung . There is a hay opacity that overlies the lower and mid left lung . Otherwise , the lungs are clear , the cardiomediastinum is without abnormality and there is no pneumothorax .
    OUTPUT:
    
There is a loculated pleural effusion at the left lateral lung . A left lateral decubitus film could elucidate whether there is a free component as well .