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 limiting assessment . Bronchovascular crowding and atelectasis is noted in the lower lungs as on prior . The previously noted cholecystostomy tube is been intervally removed . No large effusion or pneumothorax . No convincing signs of pneumonia . Cardiomediastinal silhouette is similar to prior . Bony structures are intact . No free air below the right hemidiaphragm .
    OUTPUT:
    
Lower lung atelectasis and bronchovascular crowding . No convincing signs of pneumonia .