Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: As before , there are low lung volumes accentuating the pulmonary vasculature and cardiac contour , however there is no evidence of pneumonia . There is a new small left pleural effusion . No pneumothorax . Cardiomediastinal contours are normal .
    OUTPUT:
    
No evidence of pneumonia . New small left pleural effusion .