Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP upright and lateral views of the chest were provided . Lung volumes are somewhat low with linear densities in the lower lungs likely reflective of atelectasis . No definite consolidation to suggest pneumonia . No effusion or pneumothorax is seen . The cardiomediastinal silhouette appears stable and normal . The bony structures appear intact .
    OUTPUT:
    
Mild linear atelectasis in the lower lungs . No definite evidence of pneumonia .