Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There are bilateral airspace consolidations affecting the mid and lower lungs . There is no pleural effusion or pneumothorax . Lung volumes are low . Heart size is normal . Mediastinal contours are prominent , possibly secondary to reactive lymphadenopathy . Osseous structures are intact .
    OUTPUT:
    
Bilateral pneumonia , affecting the mid and lower lungs . No pleural effusion .