Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP and lateral views of the chest . The lungs are clear of focal consolidation . There is blunting of a posterior costophrenic angle presumably on the left suggestive of small effusion . Note is made of an azygos lobe and fissure . Cardiomediastinal silhouette is within normal limits . Osseous and soft tissue structures are unremarkable .
    OUTPUT:
    
Probable left small effusion . Otherwise essentially unremarkable chest x-ray .