Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP and lateral views of the chest were obtained with patient positioned upright . There is a small right pleural effusion with right basilar consolidation which could represent atelectasis or pneumonia . There is left basilar atelectasis . Low lung volumes . Heart is top normal in size . No pneumothorax . Mediastinal contour appears normal . No free air below the right hemidiaphragm .
    OUTPUT:
    
Bibasilar atelectasis , right pleural effusion with lower lung consolidation could represent pneumonia versus atelectasis .