Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes . Heart size is normal . Mediastinal and hilar contours are within normal limits . The pulmonary vasculature is not engorged . Consolidative opacity in the right upper lobe medially is concerning for pneumonia . Streaky and linear opacities in the lung bases bilaterally likely reflect areas of atelectasis . Blunting of the right costophrenic angle posteriorly on the lateral view suggests a trace pleural effusion . No pneumothorax is present . There are no acute osseous abnormalities .
    OUTPUT:
    
Right upper lobe pneumonia . Possible trace right pleural effusion and bibasilar atelectasis .