Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear . Cardiomediastinal silhouette and hilar contours are unremarkable . There may be a small left pleural effusion . Mild compression deformity of a mid-thoracic vertebral body is of indeterminate age .
    OUTPUT:
    
Small left pleural effusion . No evidence of pneumonia or edeam .