Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP upright and lateral views of the chest provided . Lung volumes are low . Bronchovascular crowding and / or atelectasis at the lung bases noted . Mid upper lungs appear well aerated . No pleural effusion or pneumothorax . The cardiomediastinal silhouette is normal . Imaged osseous structures are intact . No free air below the right hemidiaphragm is seen .
    OUTPUT:
    
Low lung volumes without acute intrathoracic process .