Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is a dense left lower lobe consolidative opacity . There is no pneumothorax . There is a small left sided pleural effusion . Hilar contours are prominent . Cardiac silhouette is normal .
    OUTPUT:
    
1 . Dense left lower lobe consolidative opacity concerning for pneumonia . 2 . Prominent hilar contour , likely enlarged lymph nodes .