19th January 2024

A 35-year-old male presents to his GP with lower back pain and stiffness for the past 9 months, which he describes as improving with exercise.

A 35-year-old male presents to his GP with lower back pain and stiffness for the past 9 months, which he describes as improving with exercise. He has no history of trauma, and denies any numbness, tingling or weakness in the legs. His bowels and bladder function has remained normal. On examination, he had reduced spinal flexion. His past medical history is unremarkable, aside from an eye infection a few weeks ago. A spinal x-ray was performed.

What is the most likely finding on the x-ray?

Select the SINGLE most appropriate option from the list below. Select ONE option only.