Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP upright and lateral views the chest . Lung volumes are low with basilar atelectasis and bronchovascular crowding limiting assessment . Lungs are otherwise clear . No large effusion or pneumothorax . The heart size is poorly assessed . Mediastinal contour appears grossly unremarkable . Bony structures are intact . No free air below the right hemidiaphragm .
    OUTPUT:
    
Limited study with basilar atelectasis and bronchovascular crowding .