Pseudoarthrosis and ankylosis of the vertebral spine without sacroiliitis associated with Takayasu's arteritis: review of the association.

Pseudoarthrosis and ankylosis of the vertebral spine associated with Takayasu's arteritis is extremely rare. We present a patient with the entity who was HLA-B27 negative and had normal sacroiliac joints. The association between Takayasu's arteritis and ankylosing spondylitis appears real but seemingly rare.