X-ray
Frontal
Frontal
Lateral
Lateral
Lateral
Frontal
The typical appearance of a bamboo spine with multiple syndesmophytes between the vertebral bodies is seen, along with a single central radiodense line on the frontal view related to the ossification of supraspinous and interspinous ligaments called dagger sign.
Hyperkyphosis is evident in the thoracic spine.
Additionally, bilateral sacroiliac sclerosis is evident.