Ankylosing spondylitis

Case contributed by Dr Bruno Di Muzio


Incidental bone findings in a patient imaged for other reasons.

Patient Data

Age: 70-year-old
Gender: Male

CT Abdomen and pelvis (selected images - bone window)


Selected images demonstrating spine ankylosis involving continuously all the thoracolumbar contemplated vertebral bodies. There is also fusion of both sacroiliac joints.

Case Discussion

Ankylosing spondylitis is the most common seronegative spondyloarthritis, with a strong male predilection. 

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