Ankylosing spondylitis

Case contributed by Matt Skalski


Long history of low back pain.

Patient Data

Age: 40
Gender: Female

The SI joints are fused. Erosive changes with surrounding sclerosis is observed at the pubic symphysis and anterior vertebral body corners scattered throughout the lumbar and visualized lower thoracic spine, most prominent at the anterosuperior corners of L5 and T12. No marginal syndesmophytes are present. Mild degenerative hypertrophy and sclerosis of the facets is appreciated bilaterally throughout the lower lumbar spine, with no evidence of fusion. Incidentally noted is a Schmorl node at the superior endplate of L4. 

Case Discussion

This case shows typical features of ankylosing spondylitis, with shiny cornersromanus lesions, SI joint fusion and osteitis pubis


Case courtesy of the late Deborah Forrester, MD

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