Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest . There is a small left - sided pleural effusion which is minimally enlarged compared to prior . The lungs are otherwise clear without consolidation . The cardiomediastinal silhouette is normal . No acute osseous abnormality identified . There is no free air below the diaphragm .
    OUTPUT:
    
Minimal interval enlargement of a left - sided pleural effusion . No free intraperitoneal air or other acute process .