The AP film of the chest shows surgical instrumentation extending from the midthoracic spine into the upper lumbar spine, with an intervertebral cage at one of the lower thoracic or upper lumbar vertebral bodies. There are multiple old left-sided rib fractures. Lung volumes are low with minimal bibasilar atelectasis, but the lungs are otherwise clear. No acute rib fractures or pneumothorax are present. A rounded density in the retrocardiac region may represent a hiatal hernia.
Hernia (Uncertain) Acute rib fracture (Absent) Atelectasis (Present) Simple pneumothorax (Absent)